having a high density of African Americans.
Invented by sociologists who felt particularly uncomfortable in the ghetto but were simultaneously worried about maintaining a polite, scientifically detached demeanor.
This place is totally afro-saturated. If we don't get out of here by nightfall, we're not going to be able to see anyone.
In "da hood," a highly afro-saturated area, an independent culture has developed with its own dialect, art forms, and HOLY SHIT THOSE GUYS HAVE GUNS GET THE HELL OUT OF HERE
Some whites, because they are silly, find the idea of their community becoming afro-saturated terrifying, when, in reality, it would only make things a lot more funky.