Doo Doo Ass Nigga 

Basically an upgrade from Nigga or Bitch Nigga.
It's a person who is whack at everything, is always broke, always asking for someone to spot em at a restaurant etc.

'You know what? You're a doo doo ass nigga... pay for your own goddamn food man.. damn.'

Doo Doo Ass Nigga by l'spoons December 2, 2007