mishandle(verb) verb1. make a mess of, destroy or ruinSimilar word(s): blow, bobble, bodge, bollix, botch, bumble, bungle, flub, fluff, fumble, muff, spoilDefinition categories: social, fail, miscarry2. manage badly or incompetentlySimilar word(s): misconduct, mismanageDefinition categories: social, care, deal, handle, manage