My Name is Rusty by Kay Johnson

Allegedly a novel of a woman’s prison, complete with glossary of “prison slang”—but if the author has ever been inside a woman’s prison, or even done any authentic research, your editors will eat a copy of the book, complete with cover jackets. Brief plot; butchy Rusty makes a pass at prison newcomer Marcia, in order to share her commissary credits. When Rusty gets out of prison she marries and goes straight and Marcia kills herself. ~ Marion Zimmer Bradley