peeper Meaning, Definition & Usage

  1. noun a viewer who enjoys seeing the sex acts or sex organs of others
    Peeping Tom; voyeur.
  2. noun an informal term referring to the eye
  3. noun an animal that makes short high-pitched sounds

WordNet

Peep"er noun
Definitions
  1. A chicken just breaking the shell; a young bird.
  2. One who peeps; a prying person; a spy.
    Who's there? peepers, . . . eavesdroppers? J. Webster.
  3. The eye; as, to close the peepers. Colloq.

Webster 1913