Green’s Dictionary of Slang

doodle n.2

[20C+ use of all senses is mainly US]

1. [late 18C+] the penis, esp. a child’s penis [Caulfield Blackguardiana (1793) suggests ‘childish appellation for a cock’ thus a pun; ? shape of penis + testes offers link to Ger. dudelsack, a bagpipe].

2. [late 19C+] (also doodle hole) the vagina.

3. [1910s] any nameless small object, typically some form of gadget.

Pertaining to the penis

In compounds

doodle-case (n.)

[late 19C] the vagina.

doodle-dandler (n.)

[19C] a masturbator.

doodle-dasher (n.) [SE dash, to strike, to hit]

1. [late 19C] a masturbator.

2. see dingle-dangle n.

doodleflap (n.)

[late 19C] the flaccid penis.

doodle-head (n.) (also doodlebrain) [-head sfx (1)]

[1990s+] (Aus. teen) a general insult.

doodle-hole (n.)

[1930s] (US black) the vagina.

doodle-sack (n.)

see separate entry.

In phrases

do a doodle-dandler (v.) [SE dandle, to fondle, to stroke]

[19C] to masturbate.

whack one’s doodle (v.)

[1970s] of a man, to masturbate.

Pertaining to nameless objects

In compounds

doodlebug (n.) [? southeastern dial. doodle-bug, a booming cockchafer]

1. [1930s+] a small cheap car, any small vehicle or a machine or gadget.

2. [1940s+] a German V-1 flying bomb [post-WWII use is historical].

doodlebum (n.)

[1910s] any nameless small object, typically some form of gadget.

doodlefagit (n.)

[1910s] any nameless small object, typically some form of gadget.

doodleflicker (n.)

[1910s] any nameless small object, typically some form of gadget.