The part of town populated predominantly by African-Americans; neighborhoods where blacks are strongly represented. Used as a contrast to Beantown, or Chinatown, etc.
I'll go into Beantown to get weed, but not over to MLK, that's Niggerville
Comes from the film "Metropolitan" in a bar scene where two young republicans define themselves as cultured post-modern upper-middle class sophisticates; thus, Urban Haute Bourgeoisie, or UHB.
"That girl won't date UHB, she's strictly prole; dating a frickin' electrician!"