1. One who wears an arse on his head, either physically or metaphorically. In the case of the latter, usually with reference to donit behaviour.

2. Forward-looking videogame developers.
"Trip Hawkins you are an arsehat"
by otto August 12, 2003
Top Definition
One whos head is so far up ones own arse that they are wearing ones arse as a hat
OH my gosh that indy fag is such an arse hat
by vaginator September 20, 2006
The British version of "asshat". See also asshat
by Thom Gray September 03, 2003
Made by a man who got a arse hat for his birthday.
OMG u freaking arse hat stop posting crap on these forums.
by Psy January 19, 2005
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