Top Definition
The act of dating a girl just to have sex wit her and then dumping her immediately afterwords.

Abv. BaD or B&D
Jimmy: Wow Sally is pretty hot.
James: Yea but she is not girlfriend material, I think I'll pull the ol' bump and dump.
by TheMasta333 April 14, 2009
The need to take a shit shortly after snorting cocaine. It usually occurs at the beginning of party and subsides as time progresses.
"Thanks Tom. That's some good shit. Speaking of shits, I have to take one."

"Bump and dump, everytime."
by McSwilly March 11, 2006

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