Green’s Dictionary of Slang

cock n.4

[Fr. coquille, cockleshell or cowrie]

1. [early 19C+] (US, chiefly black/Southern) the vagina.

2. [1920s+] sexual intercourse with a woman.

3. [1970s+] (US, Southern) a woman, viewed solely as a sexual object; thus a piece of cock, also the vagina.

In compounds

cock hammer (n.)

[1960s] (US campus) the penis.

cock hound (n.) [-hound sfx]

1. [1940s+] (US) a man devoted to sex before all things.

2. attrib. use of sense 1.

cock-opener (n.)

[1920s–40s] (US black) the penis.

cock pluck (n.)

[1970s+] (US black) to stimulate a woman’s genitals manually.

cocksmith (n.)

[1950s–60s] (US) a womanizer, a philanderer.

cock wagon (n.)

[1970s] (US) a car, usu. flashy, new and expensive, that is owned spec. to attract easily impressed young women.

In phrases

cock it (up) (v.)

[1930s+] (Aus./US) of a woman, to offer oneself sexually in an obvious manner.

get some cock (v.)

[1970s+] (US black Southern) of a man, to have sexual intercourse.

long-cock (adj.)

[1960s–70s] of a woman, posessing a large vagina; thus as an insult.