something that has ceased to be useful or relevant.
Idioms about dead horse
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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use dead horse in a sentence
Nor is Cole worried that his party will be seen as whipping a dead horse to score cheap political points.Obamacare 37, Republicans 0: House GOP Loses Again on Repeal Vote | Michelle Cottle | May 17, 2013 | THE DAILY BEAST
So when the Today show staged a flash mob earlier this month, it had the effect of beating a dead horse.Harlem Shake & All the Memes the ‘Today’ Show Killed (VIDEO) | Kevin Fallon | February 14, 2013 | THE DAILY BEAST
But, in a major way, harping on the sins of Arafat and Abbas is like flogging a dead horse.
His recent plays, The God of Hell and Kicking a dead horse, had a vital political edge.
This, thought I, is a dismal-looking outcome—two men and a dead horse left high and dry on the sun-flooded prairie.Raw Gold | Bertrand W. Sinclair
The two men behind the dead horse were not deceived by this excitement into rising to their knees.Blazed Trail Stories | Stewart Edward White
One man he saw lying on his face with a leg hid under the body of his dead horse.Ponce de Leon | William Pilling
The reserve men cut the gear of the dead horse, dragged his body aside, and replaced him with one of the six from the caisson.In Hostile Red | Joseph Altsheler
There can be very little doubt that the phantom the Afrikander saw was the actual spirit of a dead horse.Animal Ghosts | Elliott O'Donnell
Other Idioms and Phrases with dead horse
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.