Green’s Dictionary of Slang

pin n.

1. in ext./fig. uses of SE.

(a) [mid-15C+] the penis.

(b) [1920s+] (drugs) a hypodermic syringe (or a makeshift alternative), used for injecting narcotic drugs.

(c) [1960s+] (drugs) a very thin marijuana cigarette.

2. [16C+] almost always in pl., a leg; thus pin-ends, feet.

3. [1980s+] a drug dealer [? abbr. SE kingpin].

4. [1960s+] (US prison, also pinner) a female inmate acting as a lookout.

In compounds

pin box (n.)

[late 17C] the vagina.

pin case (n.)

[mid-16C] the vagina.

pin-cushion (n.)

[19C] the mons veneris; thus the vagina.

pin gun (n.) [gun n.1 (6)]

[1950s–70s] (US drugs) an improvised hypodermic syringe, using a medicine dropper and a pin.

pin-jabber (n.) [jab v. (1)]

[1920s+] (drugs) a drug user who injects their preferred drug.

pin joint (n.) [joint n. (5c)]

[1970s] (drugs) a very thin marijuana cigarette.

SE in slang uses

In compounds

pin artist (n.) [-artist sfx]

[1930s–60s] (US tramp) an abortionist.

pin basket (n.) [SE pin-basket, a large ornamented pin-cushion with pins of varying lengths arranged to resemble a basket; such a pin-cushion was trad. given to a mother after the birth of a child]

[late 18C–early 19C] the youngest child.

pin-dick (n.)

[2000s] (US) a small and/or thin penis.

pinhead (n.)

see separate entries.

pin work (n.)

[1930s–40s] (US Und.) pinpricks on cards, used to aid cheating.

In phrases

hang a pin (v.)

[1930s] (US) to give one’s girlfriend one’s fraternity pin to wear as a sign of engagement or exclusive dating relationship.

pull the pin (v.) [the pulling of the connecting pin between two railroad wagons]

1. [1920s+] (US) to resign, to retire, to quit, to be fired from a job; to go on strike.

2. [1930s–60s] (US Und.) to leave, to go (away).

3. [2000s] (US prison) to call for help.