goof up

1 to make a mistake we must have goofed up somewhere, because this cake clearly didn't turn out right Synonyms blunder, boob [British], flub, fluff, foul up, fumble, err (up), louse up, mess (up), screw up, slip up, stumble, tripRelated Words nod; bobble, botch, bungle, butcher, foozle, mangle, mishandle, muff, murder; miscalculate, misconceive, miscount, miscue, misdeem, misgauge, misjudge, mistake; misconstrue, misinterpret, misunderstand

2 to make or do (something) in a clumsy or unskillful way he goofed up his first sale at the dealership Synonyms blow, bobble, boggle, bollix (up), boot, bugger (up), bumble, bungle, butcher, dub, flub, fluff, foozle, foul up, fumble, botch (up), louse up, mangle, mess (up), muck up, muff, murder, screw upRelated Words blunder, gum (up), muddle, piffle; blemish, blight, damage, flaw, harm, hurt, impair, injure, mar, mutilate, ruin, spoil, vitiate; destroy, wreck; mishandle, mismanageNear Antonyms ameliorate, better, enhance, help, improve, meliorate, rectify, refine, reform, remedy; doctor, fix, patch, recondition, renovate, repair, revamp