wise guy

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See also: wiseguy and wise-guy



wise guy (plural wise guys)

  1. Used other than as an idiom: see wise,‎ guy.
  2. 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.
  3. A knowledgable or successful sports bettor.
  4. (slang) A member of the Mafia; a mobster