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half buck

American  
Also half-a-buck

noun

Slang.

  1. a half dollar; the sum of 50 cents.

Etymology

Origin of half buck

An Americanism dating back to 1945–50

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.