English

Definition of impulse buy noun from the Oxford Advanced Learner's Dictionary

 

impulse buy

 noun
noun
BrE BrE//ˈɪmpʌls baɪ//
 
; NAmE NAmE//ˈɪmpʌls baɪ//
 
 
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something that you buy without planning to do so in advance, and without thinking about it carefully It was an impulse buy. Vending machine purchases are often impulse buys.