悪戯
たちの悪い いたずら。わるふざけ。
mischief ; prank ; trick ; practical joke
mischievous ; naughty​
pastime ; hobby​
playing with (e.g. a lighter) ; fooling around with ; messing around with ; amusing oneself with ; tampering with​
lewd behaviour ; sexual misconduct ; sexual assault ; molestation ; rape