Definition of "peeper" []

• A creature that makes short, high-pitched sounds, especially a frog. (noun)
• One who peeks furtively. (noun)
• Slang An eye. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And his wits must have followed his 'peeper' -- not so;"
• "Boys, if you're reading this, just an FYI, whipping out your "peeper" is not proper first-date etiquette."
• "(That was a schoolboy, unaware that Esper Proctors were hired by Examination Boards to prevent that kind of peeper-cheating) Read minds and know what people really think of me ..."