This was a song by Public Enemy on the Fear of a Black Planet CD. And also on the movie CB4. My basic understanding of this term is something that you are trapped in like a hell on earth that you can not get out of. Like a own personal hell.

A large futuristic ghetto in which blacks have been forced to live against their will. Originating from the film title 'Welcome 2 the Terrordome' (1995) which concerns issues of race. Rap group Public Enemy famously titled an album after this film in 1997.