sweaty, stinky section between ball sack and rectum that girls tend to love to lick. the grundle was made famous my matt lantz.
by mick May 13, 2005

by b-money October 18, 2003

by MRS.JONAS November 29, 2007

by Eoj June 29, 2005

the art of pulling down your pants and smashing your testicles and anus down on the head of a passed out human repeatedly.
by weiser May 2, 2005

