One who has their head up their ass. Thus wearing their ass as a hat. Asshat
by Anonymous October 11, 2002
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A person, of either gender, whose behavior displays such ignorance/obnoxiousness that you would like to make them wear their own ass as a hat.
Usage: "Can you believe that my boss is making me stay until 9 pm on a Friday!?" "What an asshat."
by c g ball September 6, 2005
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describing when one's head is so far up one's ass that one is wearing the ass as a hat. in other words, extreme stupidity.
A: Look at all those hurricane victims on their roofs, waving at the helicopters, begging for emergency food to be dropped down! Why don't they just leave?
B: You asshat.
by ami am November 16, 2005
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a person suffering from acute cranial-rectal inversion.
wow candice price is a total asshat
by josh younggayblood February 15, 2008
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A close cousin of the Ass-clown, typically identified by a jovial expression and an outward misunderstanding of how he/she is perceived, combined with a generally misguided conception of what is sociably acceptable amongst his/her fellow peers.

Said persons' frequent attempts at humor usually lead to he/she making an ass out of his/herself. Not to be confused with ass-hole.
"Quit throwing pennies at that homeless man, you asshat."

"Hey asshat, thanks for double parking."
by asshater August 14, 2006
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One who has their head up their ass, thus wearing their ass as a hat. Someone who is very ignorant, stubborn or dull.
"Gah! Dan won't pay me back my cash! Freakin' asshat!"
by Dervish March 6, 2006
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a unit vector in the ass direction
(similar to i hat, a unit vector in the i (or x) direction, j hat, k hat, etc.)
"Andrew is such an asshat."
"Totally. His unit vector is definitely pointed in the ass direction."
by andiland July 21, 2005
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