Definition of "war-horse" []

• A horse used by a mounted soldier or officer in battle; especially, in a somewhat poetical sense, the horse of a knight or commander. Compare cuts under caparisoned and muzzle. (noun)
• A veteran, as a veteran soldier or politician. (noun)

The Century Dictionary (Public Domain)

• ""There is the possibility of one mind unconsciously suggesting to another mind," Mrs. Grantly was saying; but through Lute's mind was trooping her father on his great roan war-horse."
• "I'm calling for a Tiger Team to develop a new Customer Experience Model -- a radical redesign of the old and tired Customer Relationship Management war-horse."
• "If you want to see a big Labour beast/broken down old Labour war-horse bluff and bluster then do watch John Prescott on The Politics Show."