·noun The eye; as, to close the peepers.
II. Peeper ·noun One who peeps; a prying person; a spy.
III. Peeper ·noun A chicken just breaking the shell; a young bird.
A spying glass; also a looking-glass. Track up the dancers, and pike with the peeper; whip up stairs...
Dictionary of The Vulgar Tongue by Francis Grose
A person having but one eye. ...
A collector of the window tax. ...