Green’s Dictionary of Slang

rod n.

1. [17C+] (also hot rod, flesh-rod, love rod, rod of correction, rod-pole) the penis, the erect penis.

2. [20C+] (US) a gun, a pistol; also attrib.

3. [late 19C-1940s] (US tramp) usu. in pl., the metalwork – struts, supports etc – found underneath a railroad coach or wagon.

4. [1930s–50s] (US) a gunman.

5. [1950s] (US) an automobile.

6. see hot-rod n. (2)

7. see hot-rodder n.

8. see ramrod n. (2)

Pertaining to sex

In compounds

rod-pole (n.)

see sense 1 above.

rod walloper (n.)

[1960s+] (orig. Aus.) a masturbator, lit. or fig.

In phrases

get a rod on (v.)

[1960s] to get an erection.

get some rod (v.)

[1990s+] (US campus) of a woman, to have sexual intercourse.

lay the rod (v.) [lay v.1 (1)]

[1980s+] (W.I.) to have sexual intercourse.

rod of correction (n.)

see sense 1 above.

General uses

In compounds

rod man (n.)

1. [1920s+] (US, also rodman) a gunman.

2. [1930s–40s] (US tramp, also rodsman, rod rider) a tramp who travels by clinging onto the metalwork beneath a coach or wagon.

In phrases

hit the rods (v.) (also hop the rods) [1920s–50s] (US)

1. to ride freight trains as an itinerant worker or tramp.

2. to leave, to run off.

long rod (n.)

[1930s–80s] (US Und.) a rifle.

pack a rod (v.) [pack v.1 (3)]

[1920s+] (US) to carry a gun.

ride the rods (v.)

see under ride v.

rod up (v.)

1. [1910s+] (US Und.) to arm oneself with a gun.

2. [1970s+] (US) to convert a car by giving it a very powerful engine to make it go fast.

SE in slang uses

In phrases

rod in piss (n.) (also rod in brine, rod in pickle, rods are soaking) [from the toughening of rods by marinating them in urine or lye]

1. [late 16C–1910s] a punishment in prospect; laso lit. in context of flagellation.

2. [early 19C] any agent of revenge or aggression that has been put aside for use at the right time.

3. [late 19C-1940s] in horseracing, a certainty.