Noun
One who is insolent or flippant; one who makes jokes or perpetrates pranks.
Her reputation for being a wise guy made her new teachers hesitant about having her in their classes.
A knowledgable or successful sports bettor.
(US, slang) A member of the Mafia; a mobster.
(slang) A hipster.
(slang, offensive, ethnic slur) An Italian-American man.
wise-guy (plural wise-guys)
Alternative spelling of wiseguy
wise-guy
“He got up, said a little wise guy thing. Source: Internet
He is a little wise guy. Source: Internet