A child born to a white (or at least non-black) mother and black father.
Oh look, Mariah Carey's having Nick Cannon's blaby.
af b-buckets 8. oktober 2009
1 more definition
Bull-baby or bullshit-baby. The name given to the imaginary "baby" a woman is having to make you stay with her/feel guilty/give her money.
"She's having a BLABY mate.. I know coz I had the chop 5 years ago."
af El Scroto 29. august 2003