It can also be defined to the equivalent of the phrase, "Cool guy".
Sure, whatever you say boss man.
What can I do for you today, boss man?
"He's the Bossman, and I wouldn't get on his badside. I heard he once took on an entire street gang with only a car, his older brother, and a hammer, and manged to get away with only a totaled window."
"Wow, he's a badass!"
Guido: "yea, here you go bossman"
Dude: "Fuck you douchebag"
Guido: "Sorry chief, is there a problem?"
Dude: "yea there's a problem, you know my name cause you just checked my ID, and it's not bossman or cheif! asshole!"
Guido: "oh my bad hoss"
Dude: "dammit you really are a moron"