Meaning of “impulse buy” in the English Dictionary

"impulse buy" in British English

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impulse buynoun [ C ]

uk /ˈɪm.pʌls ˌbaɪ/ us /ˈɪm.pʌls ˌbaɪ/
impulse buying
noun [ U ] uk us

the act of buying something that you had not planned to buy, because you suddenly want it when you see it:

(Definition of “impulse buy” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"impulse buy" in Business English

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impulse buynoun [ C ]

uk us also impulse purchase

something that you buy without having planned it, and without thinking carefully:

I hadn't intended to get another pair of shoes - it was an impulse buy.
impulse buyer
noun [ C ] also impulse purchaser

The snack food marketplace is largely an impulse buyers' market.
impulse buying
noun [ U ] also impulse purchasing

Supermarkets have reported a huge increase in impulse buying.

(Definition of “impulse buy” from the Cambridge Business English Dictionary © Cambridge University Press)