Breadcrumb Home > Dictionary > Index S smart ass: Meaning and Definition of Find definitions for: smart' ass" Pronunciation: [key] — Slang (sometimes vulgar) Slang (sometimes vulgar). a wise guy; know-it-all. smart-ass Pronunciation: (smärt'as"), [key] — Slang (sometimes vulgar) Slang (sometimes vulgar). —adj. characteristic of a smart ass or wise guy. —n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. smart aleck smart bomb TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: recondite Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language