Definition of "peekaboo" in English

noun

1. (games) A game for a small child in which one covers one's face, then suddenly reveals it, saying "Boo!" or "Peekaboo!".

adjective

1. (of clothing) With holes, slits or transparent fabric to reveal what is normally hidden.

   • The model was wearing a peekaboo swimsuit.

2. (boxing) Being or using a style of boxing with the hands kept close to the face to defend it.

   • peekaboo boxing
   • a peekaboo guard

verb

1. (intransitive) To peep out.

interjection

1. Boo (when showing oneself unexpectedly).