What is $100 slang?
Chloe Ramirez
Updated on March 10, 2026
"C-note" is a slang term for a $100 banknote in
U.S. currency
What Is a Greenback? A greenback is a slang term for U.S. paper dollars. The term originated during the mid-1860s, when these notes were printed in green ink. Congress had limited taxing authority, and used paper currency to help finance the civil war.
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