Green’s Dictionary of Slang

(Aus./US black) an unattractive, ugly woman.

1909		L.W. Payne Jr ‘Word-List From East Alabama’ in DN III:v 384: trollop, n. A slovenly or tomboyish girl, a romp.
1950		N. Lindsay Dust or Polish? 17: ‘It beats me how you can bother to talk to that old trollop. That’s about the fifth anniversary of her husband’s death she’s had since we’ve been here’.
1972		D. Claerbaut Black Jargon in White America 84: trollop n. an unpopular or physically unattractive female.