A cattle herder; a drover; specifically, one of an adventurous class of herders and drovers on the plains of the Western and Southwestern United States.
- A hired man, especially in the western United States, who tends cattle and performs many of his duties on horseback. Also called cowman, cowpoke, cowpuncher; also called regionally buckaroo, vaquero, waddy2. See Regional Note at vaquero.
- An adventurous hero.
- Slang A reckless person, such as a driver, pilot, or manager, who ignores potential risks.