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English definition of “wise guy”

wise guy

noun [C]     (US offensive wise ass) informal
someone who is always trying to seem more clever than anyone else in a way that is annoying: Okay, wise guy, if you're so damned smart, you can tell everyone how it's done!Unpleasant menUnpleasant people in general wise-guy     /ˈwaɪz.ɡaɪ/ adjective [before noun] (US offensive wise-ass) wise-guy humourHumour and humorous
(Definition of wise guy noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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