shenanigans

diabolicalness, misbehavior, misconduct, naughtiness, troublemaking

buffoonery, friskiness, playfulness, sportiveness

chicanery, trickery

goings-on, hanky-panky, high jinks (also hijinks), monkey business, monkeying, monkeyshine(s), skylarking, tomfoolery

horseplay, roughhousing

antic, caper, dido, practical joke, trick

aggravation, annoyance, exasperation, irritation

childishness, clownishness, foolishness, funning, jesting, joking, nonsense, silliness, waggery

boisterousness, rambunctiousness, rowdiness, rowdyism, rumbustiousness [chiefly British]

devilry (or deviltry), impishness, knavery, mischief, mischievousness, prankishness, rascality, roguery, roguishness, trickery

cavorting, frivolity, frolicking, gamboling (or gambolling), merrymaking, playfulness, revelry, roistering, romping, sporting, sportiveness