I really have no idea what the story is here. Clearly he's not happy, and feels the need to hit his head against the wall. Or at least rest it there.
This was a quickie, from reference. The reference was a blatant come-on pic with the head up, and I felt it would be better this way. Backstory... you got me. I just needed something fast to draw after spending the night out.
Ironically, the tiny details were the hardest thing to do. I spent more time on that right hand than any other element of the picture, simply because even with reference it looked totally wrong.