What is Blackdonalds?
1.
A McDonald's restaurant located in the heart of the ghetto. Usually an old, run down McDonalds that has black people loitering around all the time. Mostly just to chill with their homies, but drugs can also be dealt there. White people avoid the BlackDonalds at all costs for fear of their lives. Can also be referred to as GhettoDonald's, and is the direct inverse of WhiteDonald's.
Mike drove 5 miles out of his way to avoid the BlackDonald's on Broadway, to find the McDonald's in a more safe neighborhood.
2.
A place where many black people may gather. In this case it will be a usually run down mcdonalds. Drugs are usually dealt there, and gang hits may be placed there. Some people avoid these areas at all costs for the sake of their lives.
See:
The man didn't go near the BlackDonalds because he doesen't want to provoke violence.