- something that has ceased to be useful or relevant.
- beat/flog a dead horse, to persist in pursuing or trying to revive interest in a project or subject that has lost its usefulness or relevance.
Origin of dead horse
An Americanism dating back to 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Related Words for dead horsebill, commitment, mortgage, indebtedness, receipt, damage, due, liability, credit, deficit, capital, obligation, arrears, loss, shortfall, duty, claim, debenture, encumbrance, invoice
Examples from the Web for dead horse
Historical Examples of dead horse
So side by side and hand in hand the two of us walked out into Dead-Horse Lake.The Prairie Child
see beat a dead horse.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.