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English definition of “on the spur of the moment”

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on the spur of the moment

informal
C2 used to say that a decision, action, etc. is sudden and done without any planning: We hadn't planned to go away - it was one of those spur-of-the-moment decisions. We just jumped in a car on the spur of the moment and drove to the seaside.
Translations of “on the spur of the moment”
in Russian экспромтом, мгновенно…
in Turkish birden, aniden, düşünmeden…
in Polish pod wpływem impulsu…
(Definition of on the spur of the moment from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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