wise guy

Informal. a cocksure, conceited, and often insolent person; smart aleck:
"He has a reputation for being a wise guy."
Also called wiseacre.
1895–1900, Americanism
Related forms
wise-guy, adjective
Example Sentences for wise guy
At forty he still has something of the smirking manner of the high school wise guy.
As though only a total outsider, or fool, or wise guy would apply such workaday logic to the briefing process.
Being a wise guy may not always be compatible with campaigning for public office.
Some wise guy had a tape measure with him and took a reading.
British Dictionary definitions for wise guy
wise guy
1.  informal a person who is given to making conceited, sardonic, or insolent comments
2.  (US) a member of the Mafia

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Slang related to wise guy


noun phrase
  1. (also wise apple)A person who is ostentatiously and smugly knowing; smart aleck, smart-ass : My little brother is an irrepressible wise guy (1896+)
  2. (also wise hombre)A shrewd and knowing person; a person who is ''wised up'' : The wise guys said Frank didn't stand a chance (1896+)
  3. A professional criminal, esp a mob member : The wiseguys like places they're known/ Hanging out at a neighborhood restaurant in the Italian section of Queens, the first thing he learned is that the wiseguys never talk about what they do (1970s+ Underworld)

Dictionary of American Slang
Copyright © 1986 by HarperCollins Publishers
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Idioms and Phrases with wise guy

wise guy

An obnoxious know-it-all, a person who makes sarcastic or annoying remarks, as in the teacher was delighted that the worst wise guy in the class was moving out of town. [Slang; second half of 1800s] Also see smart aleck.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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