Green’s Dictionary of Slang

worker n.2

[work v. (10)]

(Aus.) a prostitute.

K. Mackey Cure 105: {t]he old worker squeaked HELP, dropped the receiver and fled into the Woolloomooloo dust haze.
[Aus]J. McNeil Chocolate Frog (glossary).
[Aus]Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Worker. A prostitute.