les, adj. — Green’s Dictionary of Slang

les adj.

also lez

lesbian.

1951–52		Kerouac Visions of Cody (1973) 90: It was a les bar and not only that the coolest and best in New York.
1966		Trimble 5000 Adult Sex Words and Phrases 120: les (Sl.) n. & adj. Lesbian; female Homosexual.
1970		T. Southern Blue Movie (1974) 77: She’s lez, she’s lez [...] She’s got a cunt, ain’t she?!?
1997		(con. 1960s) A. Frewin London Blues 69: les or lez is lesbian stuff.
2000		W.T. Vollmann Royal Family 267: Domino’s lez.
2014		M. Sheridan ‘Feeling Good’ in ThugLit Jan. [ebook] I churned out a few gay-lez juvie series.
2021		J. Ellroy Widespread Panic 65: Vampira went lez [...] she was running a lez string out of Googie’s.