[boo
l-dawg, -dog] 
noun, adjective, verb, -dogged, -dog⋅ging.| 1. | one of an English breed of medium-sized, short-haired, muscular dogs with prominent, undershot jaws, usually having a white and tan or brindled coat, raised originally for bullbaiting. |
| 2. | Informal. a stubbornly persistent person. |
| 3. | a short-barreled revolver of large caliber. |
| 4. | Metallurgy. slag from a puddling furnace. |
| 5. | an assistant to the proctor at Oxford and Cambridge universities. |
| 6. | like or characteristic of a bulldog or of a bulldog's jaws: bulldog obstinacy. |
| 7. | to attack in the manner of a bulldog. |
| 8. | Western U.S. to throw (a calf, steer, etc.) to the ground by seizing the horns and twisting the head. |
| bull·dog (bŏŏl'dôg', -dŏg') n.
tr.v. bull·dogged, bull·dog·ging, bull·dogs Western U.S. To throw (a calf or steer) by seizing its horns and twisting its neck until the animal falls. bull'dog'ger n. |
bulldogging
rodeo event in which a mounted cowboy chases a full-grown steer, dives from his horse on top of the animal, grasps its horns, digs his heels in the ground to bring the animal to a stop, and twists it to the ground. The event is timed from the moment a barrier in front of the cowboy is released to the moment the steer is judged down-i.e., flat on its side with all four legs and head in the same direction and the cowboy still in contact. The contestant with the lowest elapsed time wins. Each bulldogger has a partner, called a hazer, who rides alongside the steer and keeps it headed in a straight line while the bulldogger makes his approach
Learn more about bulldogging with a free trial on Britannica.com.