Dirty Dirty
n.— «Banned in 47 Countries baby from the Dirty Dirty, to your Uranus.» —“Betta who? Betta wha?” by
be*******@ao*.com
(BettrDuck) Usenet: alt.rap Apr. 9, 1999. (source: Double-Tongued Dictionary)
These are pet names for rappers’ hoods, geographically speaking: “the dirty south” and “the dirty dirty south” and for short: “the dirty dirty”.
Yes, that information is already imparted in the full entry linked above.