One whose head is so far up their rear end it could pass for a hat; used to describe a person who is stubborn, cruel, or otherwise unpleasant to be around.
A general term for someone who carries out actions with such stupidity that they might as well wear their ass as a hat.
Pete begins looking for his sunglasses, unknowing to the fact that they are on his head. He asks Ed where his glasses are. Ed takes them off his head saying, "You are such a fucking ass-hat."
By Kirstyn
Ass-hat
Someone so incredibly stupid and/or ignorant that everything above their waist is useless; i.e. a hat for their ass.
the out come of a practice of wearing something sphincterally tight around one's head, cutting off the blood flow and dramatically lowering social skills.
The act of crouchingrepeatedly over a dead opponents head while gaming, thus demoralizing said opponent with much pwning.
Pwner: *Bang*
Pwned: *Dies*
Pwner: *Crouches repeatedly over dead body*
Pwned: *Witnesses Pwner's ass repeatedly bouncing over head*, "Damn, I got ass-hatted."