aphorism apothegm be merry with bon mot boutade bright idea bright thought brilliant idea conceit crack crack a joke crack wise epigram facetiae flash of wit fleer at flight of wit fun gag gibe gibe at happy thought jape jest joke josh kid kid around make a funny make fun make fun of mock mot nasty crack persiflage play of wit play on words pleasantry poke fun at pun quip quips and cranks repartee retort ridicule riposte sally scintillate scintillation scoff at smart crack smart saying snappy comeback sparkle stroke of wit turn of thought utter a mot waggery witticism yak