Green’s Dictionary of Slang

jip n.1

also gip
[? US sporting jargon gyp, a bitch (dog); ult. abbr. gypsy, used as a popular dog’s name]

(US) a derog. term for a woman, esp. a black woman.

F. Douglass Narrative 61: Move faster, you black gip! [HDAS].
F. Douglass Bondage and Freedom 149: She would draw her cowskin and give them a blow, saying, ‘move faster, you black jip! [...] take that, you black jip!’.