THESAURUS
smarty
boldface, brazenface, chutzpanik, hussy, know-it-all, malapert, minx, pup, puppy, saucebox, smart, smart aleck, smart-ass,
smarty-pants, swaggerer, upstart, whippersnapper, wise guy, wise-ass, wiseacre, wisecracker, wisehead, wisenheimer