stock horse

noun Western U.S.

a horse or pony used in herding cattle.

Origin of stock horse

First recorded in 1860–65 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for stock horse

  • Once I stopped to look at Jim: I just sat back and the mare 'propped'—she'd been a stock-horse, and was used to 'cutting-out'.