exterminatory (adjective) internecine: mutually harmful
Sinonime: antic, bon mot, buffoonery, burlesque, caper, caprice, chestnut, clowning, drollery, epigram, escapade, farce, frolic, gag, gambol, game, ha-ha, hoodwinking, horseplay, humor, jape, jest, lark, laugh, mischief, monkeyshine, mummery, one-liner, parody, payoff,
play, pleasantry,
prank,
pun, put-on,
quirk, raillery,
repartee,
revel, rib, sally,
saw, shaggy-dog story, shenanigan, snow job,
sport,
spree, stunt,
tomfoolery,
trick,
vagary,
whimsy, wisecrack,
witticism, yarn