THESAURUS
cutting remark
Parthian shot, back answer, caustic remark, comeback, crack, cut, dig, dump, fleer, flout, foolery, gibe, gibing retort, jab, jape, jeer, jest, leg-pull, mock, parting shot, put-down, put-on, quip, rude reproach, scoff, scurrility, short answer, slam, slap, swipe, taunt, twit, verbal thrust