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a person who is annoying because they constantly try to show off how clever or knowledgeable they are
American
What is the origin of the idiom "smart-ass" and when to use it?
"Smart-ass" is an informal English insult that appeared in the early 20th century, likely in American slang. It combines "smart" (clever) with "ass" (used to indicate foolishness or annoyance) to describe someone who tries to show off their intelligence in a way that irritates others. The term became popular in casual conversation, schools, and workplaces as a way to call out know-it-alls or show-off behavior. It is derogatory but mild compared with more offensive terms, and is often used jokingly among friends, though it can be insulting if applied seriously.
having an irritating habit of trying to appear clever or witty
American
What is the origin of the term "smart-ass" and how is it used?
"Smart-ass" appeared in American English in the early 20th century as a slang insult, combining "smart" (clever) with "ass" (used to mark someone as foolish or obnoxious) to criticize a person who tries to show off their intelligence in an irritating way. The metaphor implies that the person's cleverness is socially annoying or arrogant rather than genuinely impressive. It is commonly used in informal speech among friends, coworkers, or in storytelling to call out sarcasm, know-it-all behavior, or cheeky remarks. The term is derogatory but often lighthearted, context-dependent, and rarely considered deeply offensive outside casual quarrels or teasing.
