Nouns

(n)prankishness, rascality, roguishnessthe trait of indulging in disreputable pranks
(n)rascality, shiftiness, slipperiness, trickinessthe quality of being a slippery rascal
(n)mischief, mischief-making, mischievousness, deviltry, devilry, devilment, rascality, roguery, roguishness, shenaniganreckless or malicious behavior that causes discomfort or annoyance in others