booby

Short definition from Wiktionary

Noun

1. 1
   A stupid person.
2. 2
   Any of various large tropical seabirds from the genera Sula and Papasula in the gannet family Sulidae, traditionally considered to be stupid.
3. 3
   In the game of croquet, a ball that has not passed through the first wicket.
4. 4
   A breast.

Verb

1. 1
   To behave stupidly; to act like a booby.
2. 2
   To install a booby trap on or at (something); to attack (someone) with a booby trap.

Adjective

1. 1
   Stupid; unintelligent.
2. 2
   Displaying breasts prominently.
3. 3
   Having large breasts.