A derogatory more degrading term for calling someone son, who isn't in fact your son. Considered very disrespectful. Used to show authority or empowerment over a person. Basically labeling the person you refer to as skun your personal bitch.
Joe, "Go get me a beer skun!"
Bitch Boy, "What kind of beer sir?"
Joe, "You know I only drink King Cobra 40's skun!"