Green’s Dictionary of Slang

(Irish) a slut, a prostitute; also used affectionately.

1965		L. Dunne Goodbye to The Hill (1966) 128: The way fellas talk, you’d think it was impossible to get a bit unless you went to a brasser.
1970		C. Brown Down All the Days 95: Did you have to put up with being called a hoor and brasser and fornicator [...] ?
1987		(con. 1930s) L. Redmond Emerald Square 296: I [...] drank gin and tonics and hoped one of the ‘brassers’ would approach me, but none of them ever did.
1990		R. Doyle Snapper 37: Serves her righ’, the nosey brasser.
1999		Indep. on Sun. 22 Aug. 18: He would disappear furtively with the local ‘brasser’ before rejoining his family at home for Sunday lunch.
2001		G. Coughlan Everyday Eng. and Sl. 🌐 Brasser (n): woman of ill repute, who charges but a brass coin for her services.
2009		T. Black Gutted 61: The area we call the Pubic Triangle: skin bars and brassers all the way along to Lothian Road.
2009		D. Kennedy Climbing Patrick’s Mountain 197: A brasser, Gallagher concluded, likely high on drugs, and again he made to pass her on the sidewalk but again she slid in front of him with a salacious leer.