I. -ˌbȯi noun
Date: 1623
1. : one who tends cattle or horses ; especially : a usually mounted cattle-ranch hand
2. : a rodeo performer
3. : one having qualities (as recklessness, aggressiveness, or independence) popularly associated with cowboys: as
a. : a reckless driver
b. : a business or businessperson operating in an uncontrolled or unregulated manner
II. intransitive verb
Date: 1948
: to work as a cowboy
cowboy ed in Texas and Oklahoma