Green’s Dictionary of Slang

(US gay) a male prostitute who pretends innocence until promised cash.

1972		B. Rodgers Queens’ Vernacular 42: cash-ass (fr cautious) cynically applied to a hustler who feigns coyness until assured of material gain ‘He’s not shy, he’s cashass; mention money and watch his cheeks light up!’.
1986–7		Maledicta IX 143: The COD (cock on delivery) lads chiefly go on the batter (walk the streets) making gay pennies as cash ass.

(N.Z. prison) a prisoner who holds a steady supply of saleable drugs.

2001

D. Looser Boobslang [U. Canterbury D.Phil. thesis] 38/1: cash converters n. an inmate in possession of a steady supply of drugs for sale to other inmates: I’m hanging out, bro, so I’m going to cash converters.

a pimp.

1886

W. Newton Secrets of Tramp Life Revealed 21: The character called by the name of ‘Cash Carrier,’ who makes a living out of his unfortunate victims [...] He picks up some poor unfortunate girl, and they go as man and wife, or laken. He will then force her, if she requires any forcing, out at night to pick up something.

(US) a (prostitute’s) vagina.

1961		T.I. Rubin In the Life 41: Well, hole, snatch. You know, my money machine [...] The cash register. [Ibid.] 128: My cash register is just like any other.
1966		R. Giallombardo Gloss. in Study of a Women’s Prison 202: Cash Register. Vagina.

(US) codfish.

1886

Marion (OH) Daily Star 22 Nov. 3/3: ‘Cash on delivery,’ means codfish.

(Aus.) to spend all one’s available funds.

1919

Aussie (France) 11 Feb. 14/2: [cartoon caption] ‘He seems to have done his dash on that Belgian bint.’ / ‘Don’t know about doing his dash on her, but he’s certainly doing his cash.’.

(UK und.) a gambler.

1784		H. Lemoine ‘The Clever Fellow’ in Wit’s Mag. 156/1: I’m company for scamps and prigs, Sometimes for men of cash.
1791		H. Lemoine ‘Education’ in Attic Misc. 116: In Smithfield too, where grazier flats resort, / He loiter’d there to take in men of cash.