Smart aleck

noun

  1. One who is given to obnoxious or insolent humor.

  2. One who is pretentious about their own cleverness or knowledge.

  3. One who is obnoxiously self-assured; a show off.

Synonyms: clever dick, know-it-all, smart ass, smarty pants, wise ass, wiseacre, smart ass, smarty

smart aleck

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