BUMP COMES FROM THE ACT OF SNORTING COKE Or KETAMINE..... YO CAN I GET A BUMP!!!!! ITS THE SMALL MOUND THAT ONE TYPICALLY PLACES NEAR THE end of the thumb and the beginning of the wrist .
Big in NEW YORK CLUB SCENCE BACK IN THE DAY
YO MAN CAN I GET A BUMP ? AMONG CLUBB GOERS