v. the act of taking a dump; dropping off the cosbys. Originated from Devin the Dude, in his critically aclaimed single, "Boo Boo'n", on Rap A Lot Records.
When a ghetto black girl thinks you are invading her ghetto surrounding, or stairing at her for a little to long, she will say this to you in response.
"Boo nigga boo, aint noboday lookin at you cuz you ugggglyy"