Shit Ass Music
Any music that is terrible and over advertised, or made by people who have the appearance of a fat male who hasn't taken a shower in a week or changed clothes. It can also be made by somebody who listens to awful music like Hoobastank.
"Hey man, did you hear that new album?"
"Yeah it was pretty awful. Better than Andrews Shit Ass Music though"
"Yeah it was pretty awful. Better than Andrews Shit Ass Music though"