shenanigan
she-nan-i-gan
noun
Playful trickery or mischievous behaviour, often slightly dishonest or disruptive.
"The children were up to their usual shenanigans in the garden."
Thesaurus
Synonyms: guile, wile, chicanery, chicane, trickery, roguery, mischief, mischief-making, rascality, mischievousness, roguishness, devilment