THESAURUS
parthian shot
PS, addendum, address, affirmation, afterthought, allegation, answer, apostrophe, appendix, assertion, averment, back answer, back matter, caustic remark, chorus, coda, codicil, colophon, comeback, comment, conclusion, consequence, continuance, continuation, crack, cut, cutting remark, declaration, dictum, dig, double take, dump, dying words, envoi, epilogue, exclamation, expression, fleer, flout, follow-through, follow-up, foolery, gibe, gibing retort, greeting, interjection, jab, jape, jeer, jest, last words, leg-pull, mention, mock, note, observation, parting shot, peroration, phrase, position, postface, postfix, postlude, postscript, pronouncement, put-down, put-on, question, quip, reflection, refrain, remark, rude reproach, say, saying, scoff, scurrility, second thought, sentence, sequel, sequela, sequelae, sequelant, sequent, sequitur, short answer, slam, slap, statement, subjoinder, subscript, suffix, supplement, swan song, swipe, tag, taunt, thought, twit, utterance, verbal thrust, word