flub(noun, verb) noun1. an embarrassing mistakeSimilar word(s): bloomer, blooper, blunder, botch, bungle, pratfallDefinition categories: act, error, fault, mistake verb1. make a mess of, destroy or ruinSimilar word(s): blow, bobble, bodge, bollix, botch, bumble, bungle, fluff, fumble, mishandle, muff, spoilDefinition categories: social, fail, miscarry