Synonyms and related words :
bloomer, blunder, bobble, bonehead play, boner, boo-boo, boob stunt, boot, break, bull, bungle, dumb trick, faux, fluff, fool mistake, foozle, foul-up, gaffe, goof, howler, impropriety, indecorum, lapse, louse-up, mistake, muck-up, pratfall, screamer, screw-up, slip, solecism, trip,