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.
de b-buckets 08 Octombrie 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."
de El Scroto 29 August 2003