The act of hitting someone so hard in roller derby that the impact with the ground causes their bowels to release and shit to spray up their back. There are many variations of this act, such as the brown pounder with ketchup, and/or cheese.
SHIT MONIQUA! You just slammed me so hard, I left a brown pounder on the track!
Bitch, yo betta start pray’n! We’re gonna hand out brown pounders to your WHOLE TEAM this bout!!