(v.) To take large amounts of ecstasy, chew straws, wear sunglasses
Person 1: Monitor Your Friends Progress!
Person 2: LOOK! THEY'RE E-BUMPIN!
Steve: Hey, man, tryna go E Bumpin tonight?!
Brad: Helll yahhhh brahhh, totally down for an E Bump! I have a whole pocket full of Wendy's straws!