Nouns

(n)riot, public violencea public act of violence by an unruly mob
(n)rioting, riota state of disorder involving group violence
(n)belly laugh, sidesplitter, howler, thigh-slapper, scream, wow, riota joke that seems extremely funny
(n)orgy, debauch, debauchery, saturnalia, riot, bacchanal, bacchanalia, drunken revelrya wild gathering involving excessive drinking and promiscuity

Verbs

(v)riottake part in a riot; disturb the public peace by engaging in a riot“Students were rioting everywhere in 1968”
(v)carouse, roister, riotengage in boisterous, drunken merrymaking“They were out carousing last night”