cuntのようなどんな単語でも探してください。
 
1.
To administer a psychoactive drug rectally.
Idiot: Booty bumping tweak is awesome!

Idiot with deathwish: Stop being stupid. It's all about mainlining.
Not an idiotによって 2006年07月10日(月)
 
2.
when one shakes ones ass against another's ass and vibrations in between would result in a booty bumping.
"I was shaking my thang, when this chick suddenly grinding in my space booty bumping."
Jaysin and ahmanduhによって 2009年08月28日(金)