peepbo

noun
  1. a children's game in which one player hides their face and then suddenly reveals it while saying 'peepbo,' causing surprise or delight
  2. Usage: informal; chiefly British; also spelled 'peekaboo'
interjection
  1. an exclamation used when playing peepbo or to surprise a child by suddenly appearing
  2. Usage: informal; chiefly British

Examples