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English definition of “impulse buy”

impulse buy

noun [C]     (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) impulse buying noun [U] (also impulse purchasing)
(Definition of impulse buy noun from the Cambridge Business English Dictionary © Cambridge University Press)
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