Green’s Dictionary of Slang

(US black) a derog. description of an unattractive female.

1997–2002		Alt. Eng. Dict. 🌐 bob (noun) big ol bitch used to describe extremely obese women.
2000		Ebonics Primer at www.dolemite.com 🌐 bob Definition: big ole bitch a fat girl: this term is usually used in code when the bob is present or on the phone, when you talking to your boys. These bitches usually tell you they thick, but they always be too thick for your taste. Example: Man, you can fuck with her if you want too, I didn’t know you were into bob’s.