Well there seems to be a clear demarcation between "Thugs/Pimps" and "Bitches/Hos" in the hip-hop world. Misogynistic, perhaps, but that's my impression (I know I'm stereotyping, and I railed against it in another post, so I apologize if this is a mischaracterization).
Methinks that you could develop it by cataloging hip-hop artists of the respective genders on the sites - Say, Ciara and Missy Elliot and Amerie for the girls; 50 Cent, Ludacris, etc. for the guys.
May want to snap up lingo-related words also.