One of five basic turd colors. A foul smelling turd or squirts that are dark black and rather loose in consistancy. Can often resemble coffee grounds. This is generally an unhealthy turd, as it could be an early indication of internal bleeding. Get your ass to a hospital.
Also see, Sweet Potatoe Orange, Mid-Night Brown, Jungle Green and Rutabaga Red.
Damn!!! I just sprayed the back of the crapper with a huge Jet Black, bigger than the BP oil spill.
After emitting a Jet Black he was admitted to the hospital.