When used by a white person, this word means the coolest badass that ever lived and connotes a sense of brotherhood. It is a term generally used in the South among males between the ages of 16-24.
When used by a non white person, this word is used to describe a white person who thinks he is way cooler than he actually is. The stereotype hoss according to the non white person is an 18 year old high school football player with a truck and a cowboy hat, who talks a big game but has a poor education level.
Steven Scott looked up to the characters on Varsity Blues and wanted to be a hoss just like them.
Tyrone Mofugga saw a bunch of hosses riding in the back of a pickup truck yelling "faggot" to everyone passing them by.
One who is a Bad Ass that can basically do anything he wants. He is usually loved by all and a ladies man. Also, a name for a friend, or to describe a friendship. Hoss is a compliment. Plural form Hosses.