Green’s Dictionary of Slang

check n.1

[SE check, a token, a ticket; phr. underpinned by gambling imagery; thus Asbury, Sucker’s Progress (1938) 18: ‘An extraordinary number of the terms, technical and otherwise, which were employed by Faro players in the palmy days of the game have passed into the language [...] and are commonly used by millions who never heard of Faro. Here are some of them: [...] Pass in his checks — He cashed in.’]
(US)

1. [mid-19C–1910s] money.

2. [1920s–60s] $1.

3. [1920s–70s] a measure of a drug, usu. 28g (1oz) in a folded packet.

4. [1980s+] one’s personal supply of drugs.

In compounds

check charmer (n.)

a swindler who loiters in Faro banks in order to beg checks from winning players.

In phrases

cash in one’s checks (v.) (also cash in one’s (earthly) cheques, cash one’s check(s), cash one’s last check, cash one’s last stock of whites )

[late 19C+] (orig. US) to die.

check please

[1970s] (US black) a phr. indicating that a meeting is concluded.

get one’s checks (v.)

[late 19C] (US) to die.

hand in one’s checks (v.) (also hand in one’s cards)

[mid-19C+] (US) to die.

pass in one’s checks (v.) (also pass in one’s counters, ...cheque, pass in, pass on one’s cheque)

[mid-19C+] (orig. US) to die.

put one’s checks back in the rack (v.)

[1930s+] (US) to die.

send in one’s checks (v.)

[mid-19C+] (US) to die.