coin box (noun) cash register: machine recording sales
Sinonime: absurdity, absurdness, antics, buffoonery, carrying-on, clowning around, craziness, disobedience, foolery, foolishness, hanky-panky, high jinks, hokey-pokey, horse feathers, horseplay, inanity,
insanity, irresponsibility, ludicrousness, lunacy, misbehavior,
mischief, mischief-making, monkeyshine,
nonsense, poppycock,
prank,
silliness,
stupidity, tommyrot