Someone who wrangles or corrals.
A brawler or disputant.
(US) A cowboy who takes care of saddle horses.
(US) A cowboy who takes care of tourists.
An animal handler or trainer.
(UK, education, Cambridge University) A student who has completed the third year of the mathematical tripos with first-class honours.
(US, education, New England, derogatory) A special education teacher.