Definitions by Zachary747

rumbl 

Rumbl means Roll Under My Bed Laughing kinda like rofl only 200 times cooler..it's going to be famous.

Person:Dude that guys balls just smashed!! ROFL
me: no dood its Rumbl
Person: oh sorry rumble at his balls getting owned.

rumbl by Zachary747 August 13, 2007