wise guy

wise guy

noun

Definition of WISE GUY

a person who likes to show off in a clever but annoying way <if you weren't such a wise guy all the time, people might be more interested in hearing what you have to say>

Synonyms smarty (or smartie), smarty-pants, wiseacre, wiseass, wise guy, wisenheimer (also weisenheimer)

Related Words know-all [chiefly British], know-it-all; wisecracker; hotshot, show-off