boob

Meanings

Noun

• Idiot, fool.
• A mistake.
• A breast, especially that of an adult or adolescent human female.
• A prison; jail.

Adjective

• Idiotic, foolish.

Verb

• To behave stupidly; to act like a boob.
• To make a mistake.

Origin

• Clipped form of booby. Appeared near the beginning of the twentieth century; more information at booby § Etymology 1.
• Clipped form of booby. Appeared from the 20th century; more information at booby § Etymology 2.
• Apparently shortened from booby-hatch.