Generially a short African American, or just African man that generially suffers from use of preformance enhancing drugs and very, VERY small genitalia. Therefore, "De'Markus" is the Asian man of the African American community.
"In a porno, you can guess a black man's name by his height, and size of his wang. If he's short, and his ding-dong is literally concave, then his name is (most likely) De'Markus."
by TheSpyder January 19, 2012