cowboy
[noun]
Synonyms: cowhand, cattleman, drover, gaucho (S. American), herdsman, rancher, stockman

[TahlilGaran] English Synonym Dictionary ▲

cow‧boy /ˈkaʊbɔɪ/ noun [countable]

1. in the US, a man who rides a horse and whose job is to care for cattle

2. British English someone who is dishonest in business, or who produces very bad quality work:
a firm of cowboy builders

3. cowboys and Indians a game played by children who fight while pretending to be cowboys and Native Americans

[TahlilGaran] Dictionary of Contemporary English ▲

cowboy
n., slang, informal A person who drives his car carelessly and at too great a speed in order to show off his courage.
Joe's going to be arrested some day
■ he is a cowboy on the highway.

[TahlilGaran] English Idioms Dictionary ▲