Hollaback girl

a promiscuous woman
hollaback girl (plural hollaback girls) (slang) A woman who responds readily to a come-on; a promiscuous woman.

Don't listen to these morons telling you it means talking shit without following through. They're remedial.

"Man, the whole team ran through Violet, she's a hollaback ____<--- (Insert, girl, bitch, hoe, broad, or any other term for female here)

Hollaback girl = promiscuous girl