bad job, balk, be all thumbs, bevue, blooper, blunder, blunder away, blunder into, blunder on, blunder upon, bobble, boggle, bonehead play, boner, boo-boo, botch, bumble, bungle, butcher, clumsy performance, commit a gaffe, error, etourderie, false move, false step, faux pas, flounder, flub, fluff, foozle, fumble, gaucherie, hash, inadvertence, inadvertency, lapse, lapsus calami, lapsus linguae, loose thread, lumber, make a miscue, make a mistake, mar, mess, misapprehend, misconceive, misidentify, misinterpret, misstep, mistake, misunderstand, muddle, muff, murder, off day, omission, oversight, play havoc with, sad work, slip, slipup, spoil, stumble, trip, wrong step