The act of shitting on a persons stomach(not to be confused with a Cleveland Steamer) and then hitting the persons stomach with a wild branch of any kind of hard wood, preferably Oak, Hickory or Rock Maple. The song "Blood for Blood" by Machine Head must be playing via boombox and/or car stereo in order for the Nigger Belly taking place to be proper. Nigger Bellies often transmit diseases and bacteria due to the excrement entering the open wounds on the abdomen, thus making it not only extremely painful, but potentially deadly.
"We gave Red a Nigger Belly to remember! You shoulda seen all the blood and fecal matter all over his torso!"