Green’s Dictionary of Slang

1. of a man, to have sexual intercourse.

1937–84

Partridge DSUE (1984) 983/1: late C.19–20.

2. (US Und.) to hold up with a gun.

1914

Jackson & Hellyer Vocab. Criminal Sl. 71: rod [...] to hold up at the point of a pistol.

3. to arm oneself with a gun.

1930

J. Lait Put on the Spot 76: His mob an’ Kinky’s wouldn’ rod nor rat so long as the boys stayed on the reservations.

4. (US teen) to drive an automobile.

1960		Sandusky Register (OH) 19 Nov. n.p.: Thanksgiving. This means a lot of time to rod about [...] drive like the fizz is following you.
1960		Baltimore Sun (MD) Sun. Mag. 4 Dec. 9/1: He had feet, rodded a bomb that was real hairy, and stacked up as the ginchiest speed man in school.