Green’s Dictionary of Slang

1. (Aus. prison) to fellate; occas. to masturbate.

1990

Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Rinse. To fellate. Also in some cases masturbation.

2. (UK black) to have sexual intercourse.

1997		‘Q’ Deadmeat 136: He was sucking her breasts tenderly and getting ready to rinse it.
2008		A. Wheatle Dirty South 101: Invite man to my gates and find out he’s a chi-chi man! You secretly wanna rinse man’s bottom.
2011		J.J. Connolly Viva La Madness 12: The gamiest hookers, who rinsed out the punters till they were parying to the lord.

3. (UK black) to exploit; thus rinsed, used up.

2004		Guardian G2 20 Sept. 16: She takes care to promote the woman who prefers to be independent rather than rinsing a man for ‘Bimmers’ and jewellery.
2007		N. ‘Razor’ Smith Raiders 240: They rinsed their corner of London, robbing every likely target at least twice.
2017		theculturetrip.com ‘Guide to London Slang 10 Jan. 🌐 Rinsed – overused, used up, all gone.

4. to play a record.

2006

Ace & Invisible 1Xtra 28 Apr. [BBC radio] I used to rinse this [record] every day.

5. to reprimand.

2006

G. Malkani Londonstani (2007) 10: His mum [...] rinsed him for being a badmarsh delinquent ruffian.