Idiom
Spur of the moment
What does 'on the spur of the moment' mean?
'On the spur of the moment' means deciding or acting suddenly, without advance planning. For example: 'We stopped for tea on the spur of the moment.' Use 'spur-of-the-moment' with hyphens directly before a noun, as in 'a spur-of-the-moment excursion'. The idiom describes timing, not whether the result was good or bad.
Key points
- The expression describes sudden, unplanned decisions or actions.
- Keep the fixed preposition 'on' in the full idiom.
- Use 'spur-of-the-moment' directly before a noun.
- The expression does not judge the decision's outcome.
Can you use "Spur of the moment" yourself?
This lesson has 5 stages. You can stop at any time and continue later.
Stage 1 of 5
Understand
What it means, when to use it, and mistakes to avoid.
The full explanation
The idiom 'on the spur of the moment' means deciding or acting suddenly because of an immediate idea rather than an advance plan. When describing a noun directly, write 'spur-of-the-moment' with hyphens.
We decided to eat outside on the spur of the moment.
Why it works: The speaker uses the phrase after the verb phrase to indicate that the choice was immediate and unplanned.
2 more examples
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A spur-of-the-moment trip to the coast gave the family a refreshing break.
The hyphenated adjective comes directly before the noun trip to describe its spontaneous nature.
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I bought this warm jacket on the spur of the moment because the weather turned chilly.
The phrase explains that the purchase happened immediately upon feeling cold, without advance shopping.
Read the full guide
Recognize when a decision has no earlier plan
Speakers use the phrase on the spur of the moment when someone makes an immediate decision without thinking about it beforehand. You do not need to analyze the historical riding tool called a spur to understand the expression. Treat the entire phrase as a single unit meaning suddenly and without previous planning. It fits everyday situations such as picking up an extra pastry, taking an unfamiliar walking street, or joining a gathering without an earlier invitation.
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I called an old school friend on the spur of the moment.
Why it works: The call was made immediately as soon as the idea arrived, without any advance scheduling.
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We booked two seats on the spur of the moment.
Why it works: The booking happened right away rather than following days of travel research.
Your turn
Which situation best matches the meaning of 'on the spur of the moment'?
Answer: Stepping into a gallery simply because the doors were open as you walked by
Show the answer
Answer: Stepping into a gallery simply because the doors were open as you walked by
The idiom describes an immediate, unplanned decision made when the opportunity appears.
Describe an immediate lunch change
A common everyday setting involves lunch breaks at work. Suppose you brought food from home in a container, planning to eat at your desk while reading news. Suddenly, a coworker stops by your desk. Here is how that conversation might sound: 'Hey, Liam, a few of us are walking to the park for a picnic. Do you want to come?' Liam replies: 'I brought food, but the sun is out, so yes! I will join you on the spur of the moment.' Liam had an initial plan, yet he set it aside immediately when a better social option appeared. When you change an existing arrangement, you can look at /micro-listenings/1-2/ for more practice with changing plans, or review /grammar/future-plans/ when discussing scheduled events.
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Maria put her lunchbox in the fridge and joined the picnic on the spur of the moment.
Why it works: Maria changed her daily routine immediately without any advance notice.
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Our team chose an outdoor table on the spur of the moment because the cafeteria was crowded.
Why it works: The group responded to the immediate situation rather than an organized lunch schedule.
This also comes up in Play it by ear and Mixed conditionals.
Your turn
Why does Liam say he joined the picnic 'on the spur of the moment'?
Answer: He decided instantly when invited, even though he had packed lunch for his desk
Show the answer
Answer: He decided instantly when invited, even though he had packed lunch for his desk
Liam had not arranged the picnic beforehand; he accepted the invitation right when it was offered.
Place the full phrase with your verb
When you use the idiom as an adverbial phrase to describe an action, keep all five words intact: on the spur of the moment. Always keep the starting preposition on, include both instances of the, and keep moment singular. The easiest position for learners is at the end of the sentence following the main action. However, you can also place the expression at the very start followed by a comma when you want to emphasize the sudden nature of the action.
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She ordered dessert on the spur of the moment.
Why it works: The phrase sits naturally at the end of the sentence to show how she ordered.
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On the spur of the moment, David rented a bicycle for the afternoon.
Why it works: Placing the phrase first highlights that the rental was completely unplanned.
Your turn
Which sentence shows the correct fixed form of the action phrase?
Answer: They bought a tent on the spur of the moment.
Show the answer
Answer: They bought a tent on the spur of the moment.
The fixed expression requires the preposition 'on', both articles 'the', and the singular noun 'moment'.
Add hyphens before a noun
English punctuation changes when this phrase shifts from describing an action to describing a noun directly. When you place the words directly before a noun like decision, purchase, or picnic, the four words function as a compound adjective. In that position, drop the preposition on and connect the remaining words with hyphens: spur-of-the-moment. Writing hyphens helps your reader process the entire group of words as a single description before the noun arrives.
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It was a spur-of-the-moment decision to take the train instead of driving.
Why it works: The hyphenated unit sits right before the noun decision.
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We enjoyed a spur-of-the-moment picnic by the fountain.
Why it works: Hyphens link the words into a single modifier for picnic.
Your turn
Which sentence uses the correct spelling and punctuation before a noun?
Answer: We took a spur-of-the-moment drive along the coast.
Show the answer
Answer: We took a spur-of-the-moment drive along the coast.
Before a noun, use the compound adjective form with hyphens and omit the preposition 'on'.
Talk about spontaneity in conversation and reports
The phrase itself does not tell you whether an action was wise or foolish. A spur-of-the-moment purchase could be a delightful book or an expensive coat that you later regret buying. The idiom merely states that no prior plan guided the choice. In casual conversation and personal stories, this phrase sounds natural and lively. However, in formal workplace reports or legal summaries, it can sound overly conversational. For formal contexts, use plain alternatives like without prior planning or spontaneously. If you want to describe being flexible with daily events, you can also explore /idioms/go-with-the-flow/ or /idioms/play-it-by-ear/.
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His spur-of-the-moment comment caused awkward silence during the meeting.
Why it works: Here spontaneity produced an uncomfortable outcome rather than a positive one.
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The manager approved the travel request without prior planning.
Why it works: Formal workplace writing prefers neutral phrasing over the idiomatic expression.
Your turn
How does the idiom describe the result of an action?
Answer: It describes how the decision happened, regardless of whether the result was good or bad.
Show the answer
Answer: It describes how the decision happened, regardless of whether the result was good or bad.
The expression focuses strictly on the absence of advance planning, leaving the outcome neutral.
Avoid preposition errors and timing mix-ups
Learners often make two predictable errors. The first error is swapping prepositions by saying in the spur of the moment or omitting words as in on spur of moment. Always remember that the preposition must be on. The second error is confusing this idiom with at the last minute. The phrase at the last minute means something happens just before a strict deadline or scheduled start. That timing might be rushed or stressful, but it does not mean the action was unplanned. An unplanned choice happens without an earlier intention.
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I submitted my tax documents at the last minute because the website was slow.
Why it works: This action was planned for weeks, but the submission occurred right before the deadline.
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I bought a novel on the spur of the moment while waiting for my coffee.
Why it works: The purchase was not driven by a deadline; it was an unplanned whim.
Your turn
Which sentence correctly highlights a deadline rather than an unplanned choice?
Answer: Carlos finished his application at the last minute before the midnight deadline.
Show the answer
Answer: Carlos finished his application at the last minute before the midnight deadline.
'At the last minute' refers to an action completed near a cutoff time, not an impromptu decision.
Catch reduced words in connected speech
When native speakers say on the spur of the moment at normal conversational speed, you will hear strong stress on spur and the first syllable of moment. The little words of the in between are pronounced rapidly with weak vowel sounds, sounding like uh-thuh. Furthermore, speakers of British and Australian English often connect the final sound of spur directly to of, creating a smooth link that sounds like spur-rov. Recognizing this rhythm helps you identify the phrase even when the individual function words blur together.
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We left on the spur of the moment.
Why it works: In natural speech, spur links to of the so that the middle words sound short and unstressed.
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It was purely on the spur of the moment.
Why it works: The listener hears clear emphasis on purely, spur, and the first part of moment.
Your turn
Which parts of 'on the spur of the moment' receive the strongest natural stress in speech?
Answer: The content words 'spur' and the first syllable of 'moment'
Show the answer
Answer: The content words 'spur' and the first syllable of 'moment'
Natural rhythm emphasizes 'spur' and 'mo-', while 'of the' reduces to rapid, weak syllables.
Select the right form from memory
To fix both forms in your active memory, practice choosing between the adverbial phrase and the hyphenated adjective. Ask yourself whether the words describe an action verb or sit directly before a noun. If you are describing how you bought, went, or called, use the full five-word phrase without hyphens. If you are describing a noun like decision, dinner, or purchase, use the four-word hyphenated adjective. Reviewing this contrast ensures you write and speak with clear accuracy.
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We chose the blue armchair on the spur of the moment.
Why it works: The phrase follows the verb chose to describe how the choice occurred.
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It turned out to be a wonderful spur-of-the-moment dinner.
Why it works: The hyphenated adjective modifies the noun dinner.
Your turn
Which phrase correctly completes: 'We booked a ____ weekend trip to the mountains'?
Answer: spur-of-the-moment
Show the answer
Answer: spur-of-the-moment
The modifier sits directly before the noun phrase 'weekend trip', so it must be the hyphenated adjective.
Common mistakes with "spur of the moment"
What learners often say, what to say instead, and why.
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Not this:
We left in the spur of the moment.Say: We left on the spur of the moment.
The fixed idiom requires the preposition 'on', not 'in'.
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Not this:
He made an on the spur of the moment choice.Say: He made a spur-of-the-moment choice.
Before a noun, use the hyphenated adjective and omit 'on'.
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Not this:
They decided on the spur of moments.Say: They decided on the spur of the moment.
The fixed expression uses the singular noun 'moment'.
Use it naturally
How people really use “on the spur of the moment”
Neutral Fine almost anywhere, at work or with friends.
Words it often goes with
- spur-of-the-moment decisionMoving the celebration outdoors was a spur-of-the-moment decision.
- spur-of-the-moment tripWe took a spur-of-the-moment trip to the mountains.
- spur-of-the-moment purchaseThat lamp was a spur-of-the-moment purchase.
- spur-of-the-moment invitationHer spur-of-the-moment invitation brought the neighbors together for dinner.
What people also say
- “I decided on the spur of the moment.” instead of “I made a decision without previous planning.”This sounds natural when a sudden idea leads directly to a decision.
Questions about "Spur of the moment"
What does 'on the spur of the moment' mean?
It means deciding or doing something suddenly, without having planned or prepared for it beforehand. The idiom describes an action sparked by an immediate thought or circumstance rather than earlier scheduling.
I invited my neighbor for coffee on the spur of the moment.
Do I say 'on' or 'in the spur of the moment'?
Always use 'on'. The phrase is a fixed idiom in English, so substituting 'in' or omitting the preposition is considered an error in both standard speech and writing.
We decided on the spur of the moment to take an evening walk.
When do I need hyphens in 'spur-of-the-moment'?
Use hyphens when the four words appear directly before a noun to function as a compound adjective. If the phrase describes an action after a verb, write 'on the spur of the moment' without hyphens.
She made a spur-of-the-moment decision.
She decided on the spur of the moment.
Can I put 'on the spur of the moment' at the beginning?
Yes. While putting the phrase at the end of the sentence is most common, placing it at the beginning adds emphasis to the suddenness of the choice. When starting a sentence with it, follow the phrase with a comma.
On the spur of the moment, we booked train tickets to the coast.
Does it mean the decision was a bad idea?
No. The expression describes the lack of advance planning, not the quality of the result. An unplanned decision can turn out to be delightful, neutral, or inconvenient depending entirely on the context.
Our spur-of-the-moment picnic was the highlight of our weekend.
His spur-of-the-moment purchase left his bank account empty.
Is it the same as 'at the last minute'?
No. 'At the last minute' refers to timing near a deadline or final cutoff, which can involve an action you had planned for weeks. In contrast, 'on the spur of the moment' means you had no prior plan at all.
I filed my taxes at the last minute.
I bought flowers on the spur of the moment.
Before you go
Remember this
Use 'on the spur of the moment' after action verbs and 'spur-of-the-moment' before nouns. Remember to keep the preposition 'on' and the singular noun 'moment'. In spoken English, notice how 'of the' reduces between the stressed words 'spur' and 'moment'.
Stage 2 of 5
Listen
Hear it in real sentences, from short to long, and write what you hear.
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Listening 1 of 4
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- A spur-of-the-moment trip to the coast gave the family a refreshing break.
- I bought this warm jacket on the spur of the moment because the weather turned chilly.
Read the transcript
I bought a train ticket on the spur of the moment.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- listen for "ticke-ton": the final t in "ticket" connects to "on."
- listen for "spu-rof": "spur" and "of" flow together without a pause.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- listen for "ticke-ton": the final t in "ticket" connects to "on."
- listen for "spu-rof": "spur" and "of" flow together without a pause.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- listen for "ticke-ton": the final t in "ticket" connects to "on."
- listen for "spu-rof": "spur" and "of" flow together without a pause.
Listening 2 of 4
Listen, then type what you hear. Replay as often as you need.
0:00
- A spur-of-the-moment trip to the coast gave the family a refreshing break.
- I bought this warm jacket on the spur of the moment because the weather turned chilly.
Read the transcript
He joined an art workshop on the spur of the moment.
The idiom follows the verb phrase to indicate that enrolling in the workshop was spontaneous.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- listen for "worksho-pon": the final p in "workshop" joins the start of "on."
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- listen for "worksho-pon": the final p in "workshop" joins the start of "on."
Try a longer clip. Listen once, then replay the part you missed.
Listening 3 of 4
Listen, then type what you hear. Replay as often as you need.
0:00
- A spur-of-the-moment trip to the coast gave the family a refreshing break.
- I bought this warm jacket on the spur of the moment because the weather turned chilly.
Read the transcript
We packed simple sandwiches for our desks, yet we agreed on a spur-of-the-moment outing in the park.
Here 'spur-of-the-moment' is used as a compound adjective before the noun 'outing'.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
This clip is longer. Follow the instruction above the answer field.
Listening 4 of 4
Listen, then type the missing words. The rest of the text is already there.
0:00
- A spur-of-the-moment trip to the coast gave the family a refreshing break.
- I bought this warm jacket on the spur of the moment because the weather turned chilly.
Read the transcript
Karen usually goes straight home after office hours, but she noticed a film poster by the station entrance. Two friends from her team were queuing for spare tickets, so she joined everyone on the spur of the moment. They shared warm popcorn, watched an old mystery comedy, and enjoyed an entertaining evening without any prior preparation.
The complete paragraph contrasts an established daily routine with an immediate, enjoyable decision.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
Listen for
At natural speed these words change shape. Tap one to hear it again.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
- The last sound of the first word runs straight into the next word.
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I bought a train ticket on the spur of the moment.
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Your turn
Say it your way
Speak from memory for 30 to 60 seconds. Imagine you suddenly call a sibling to apologize for an old argument. Explain what prompted the call, why you had put it off, and whether speaking without preparation helped.
Use: on the spur of the moment spur-of-the-moment
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Hear how someone else might say it
I was sorting through some old photos when I found one of my brother and me laughing together. On impulse, I picked up my phone and called him on the spur of the moment. We'd barely spoken since an argument about our parents, and I'd kept postponing an apology because I wanted to get every word right. It was a spur-of-the-moment decision, so my explanation was a little clumsy. Still, that probably made it sound more sincere. He admitted he'd missed talking too. We didn't resolve everything, but we finally had somewhere to start.
Try once more and answer this: What did your sibling say when you apologized?
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