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Synonyms for Bungle (same or very similar meaning)

WordNet sense 1 (make a mess of, destroy or ruin):
blow, bobble, bollix, botch, bumble, flub, fluff, fumble, mishandle, spoil, screw up, bodge, bollix up, bollocks up, botch up, louse up, muck up

WordNet sense 2 (an embarrassing mistake):
bloomer, blooper, blunder, foul-up, pratfall, boo-boo, fuckup

From the ODE community, based on WordNetadd/edit