A place where niggas reside. First seen in the ancient greek culture where blacks from north africa migrated to southern greece via the trans mediterannean following the second punic war. Now seen in most metropolitan urban environments such as the streets of southen california.
typically, a huge metropolis-like area populated by different ethnicities. Also used to refer to groups of 4 or more african american males grouped together on a suburban street.
"aw dizzam hoo up ihn da niggeropolis tew day?" black person walking into a crowd of other black people.