Green’s Dictionary of Slang

park v.

1. [1910s+] to place, to put down.

2. [1920s+] to sit.

3. [1920s+] to place oneself.

4. [1920s+] (US) of a (usu.) teenage couple, to park in a secluded spot for petting and, perhaps, intercourse.

5. [1940s–50s] to get rid of someone or something; to knock someone out.

6. [1960s–70s] to give.

In phrases

park your carcass (also park your biscuit, ...puku) [SE carcass/biscuit n.1 (2d)/Maori puku, the stomach; note US radio comedian Harry Einstein (1904–58) used the pseudonym ‘Parkyakarkus’]

[1940s+] (orig. US) as an invitation, sit down.

SE in slang uses

In phrases

park a custard (v.)

[1930s+] (UK society) to vomit.

park a tiger (v.) [the ‘spotted’ or ‘striped’ nature of the material that is vomited up]

[1960s+] to vomit.

park in the same lot (v.)

[1990s+] (orig. US) to agree.

park one’s ear (v.)

[1940s] (N.Z.) to hear.

park one’s fudge (v.)

see under fudge n.

park one’s mouth (v.)

[1970s] (US) to stop talking.

park the pink cadillac (v.)

[1990s+] to have sexual intercourse.

In exclamations

park your bones!

[2000s+ ] (Aus.) stop!