A stupid person.

Any of various large tropical seabirds from the genera Sula and Papasula in the gannet family Sulidae, traditionally considered to be stupid.

In the game of croquet, a ball that has not passed through the first wicket.

(colloquial) A breast.

(rare, intransitive) To behave stupidly; to act like a booby.

(transitive) To install a booby trap on or at (something); to attack (someone) with a booby trap.

(informal, of clothing or a person) Displaying breasts prominently.

(informal) Having large breasts.