U.S. [f. QUIRT sb.] trans. To strike with a quirt.
1888. Th. Roosevelt, in Century Mag., April, 854. A first-class rider will sit throughout it all quirting his horse all the time . Quirt is the name of the short flexible riding-whip used throughout cowboy land. The term is a Spanish one.
1897. Westm. Gaz., 8 Oct., 2/1. One [horse] was quirted, raked, and nearly killed.