McSwilly's definitions
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."
"Bump and dump, everytime."
by McSwilly March 24, 2006
 Get the bump and dumpmug.
Get the bump and dumpmug.