Narcissus blowhard boaster boldface braggadocio braggart brazenface chutzpanik egocentric egoist egotist exhibitionist gasbag grandstander hot-air artist hussy individualist know-it-all malapert minx narcissist narcist no modest violet pup puppy saucebox show-off smart-ass smarty smarty-pants swaggerer swellhead upstart whippersnapper windbag wise guy wise-ass wiseacre wisecracker wisehead wisenheimer