wise guy
US /ˈwaɪz ˌɡaɪ/
UK /ˈwaɪz ˌɡaɪ/
1.
petit malin, malin, prétentieux
a person who is irritating because they think they know everything and try to be clever
:
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Don't be such a wise guy, just answer the question.
Ne sois pas un tel petit malin, réponds juste à la question.
•
He always has a sarcastic comment, a real wise guy.
Il a toujours un commentaire sarcastique, un vrai petit malin.