Green’s Dictionary of Slang

1. (US black) to work as a prostitute.

1972		Milner & Milner Black Players 229: On one occasion she complained to Mitchell that she was tired of hoing, so he beat her up.
1992		UGK ‘Pocket Full of Stones’ 🎵 It’s gettin so bad I got pregnant fiends hoin.
2014		Guardian 9 June 🌐 Nobody told her to hoe around [...] She should’ve been doing her work and maybe wouldn’t be breastfeeduing during her graduation.

2. (US black teen) to sell out, to prostitute oneself.

1980		E. Folb Runnin’ Down Some Lines 118: This dude asked me did I wanna be his ‘secretary.’ secretary! At night? [...] Sucker gonna put me on the block, ’ho for ’im – that’s his secretary.
1989		(con. 1982–6) T. Williams Cocaine Kids (1990) 87: I said if you gonna be hoeing [whoring] for a rap you ain’t nothing but a dog bitch anyway.