A type of mud that sticks to everyone and everything. It's extremely hard to get off. Standing in it too long can cause you to slightly sink in it.
Person 1: Oh lord, look at all this mud on my pants and shoes! I barely touched the stupid mud!
Person 2: Dang, thats black mud, you'd better stay inside.
Person 2: Dang, thats black mud, you'd better stay inside.
by Pinesol May 10, 2009