Conjunction of "nigger" and "zombie."
An African American, often high on illegal substances to the point of mental retardation, thus appearing to be zombified. Traveling only in large contingencies, nigombies are primarily nocturnal creatures. They can be found foraging at local fast food entities such as KFC, Popeye's, or Boston Market. Nigombies are also attracted to the scent of fat white women, grape soda, watermelon flavored bubble gum, hot sauce, and free government aid.
Scholars maintain that nigombies can be warded off by the presence of job applications, intelligent political discussion, or paternity test results.
Sheriff McClelland: Well, there's no problem. If you have a gun, shoot 'em in the head. That's a sure way to kill 'em. If you don't, get yourself a club or a torch. Beat 'em or burn 'em. They go down pretty easy."
1968, "Night of the Living Dead"