When 2 heavy-set flamboyant fellas play a game of keep away with the winner achieving immorality by putting his pee pee in the others poop chute. Very nice.
Dude 1: bro you wanna play rainbow rumpus with me?
Dude 2: Carl it's been 3 months...I'm not doing it till you clean your asshole
A loud and attention grabbing display of public affection in a very very sexual manour usually involving loud slurping of the male or female genitalia
Jennifer and mike were arrested for performing a naughty rumpus in a hotel lobby
The supposed ability of a person to find someone with an attractive buttock by ‘sensing’ the location of said buttock in their mind.
My Rumpus Compass is telling me to go over there.
Homie #1: “Aye homie, how do I look?”
Homie #2: “Yo G, you look rumpus with those assless chaps.”
Homie #1: “These are assless?!?