buscar cualquier palabra, como blumpkin:
 
1.
To administer a psychoactive drug rectally.
Idiot: Booty bumping tweak is awesome!

Idiot with deathwish: Stop being stupid. It's all about mainlining.
Por Not an idiot 10 de julio de 2006
 
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."
Por Jaysin and ahmanduh 28 de agosto de 2009