bull·dog

(bo͝ol′dôg′, -dŏg′)

1. A dog of a breed originally developed in England for bullbaiting, having a short stocky body, large head, and strong square jaws with dewlaps. Also called English bulldog.

2. A short-barreled, large-caliber revolver or pistol.

3. A heat-resistant material used to line puddling furnaces.

4. Chiefly British A proctor's assistant at Oxford University or Cambridge University.

adj.

Relentless or stubborn: "The Boston team has seldom before given such an exhibition of bulldog tenacity and fight" (Glenn Stout).

tr.v. bull·dogged, bull·dog·ging, bull·dogs Western US

To throw (a calf or steer) by seizing its horns and twisting its neck until the animal falls.

bull′dog′ger n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

bulldogging

Western U.S. the seizing of a calf or steer by the horns and throwing it off its feet by twisting the head. — bulldogger, n.