a person who lacks the very basic skills of hygiene and posesses a propensity towards laziness and sloth. They tend to have an untidy appearance and have trouble maintaining gainful employment.
Myra had no other option than to divorce Chuck, because he was such a shitbum.
REMEMBER!! The shitbum will never steer you wrong. The Shitbum will be your buddy untill the very end. He'll never waver, forever he'll stand tall, and like they say in Arkansas "thats it for now "Y'all
A hillbillybastard face down in his own puke who will stagger to his feet singing "Lawd I can't change" as though it were an anthem when he hears Lynyrd Skynyrd play on the radio.