used in place of other words such as dumbass, ass clown, cunt cap, or idiot. people who live in small swedish towns in the middle of kansas are ones most commonly referred to as ass hats... nobody really knows why or where this phrase was started... but tho said to have been started long ago it is slowly starting to make a comeback starting in kansas and spreading to several known places such as smithville missouri and even omaha nebraska... tho unknown why it is making a comeback, it is greatly becoming a common work among the high school crowd and will most likely soon if not already hit your school!
Zack: Go ahead and speed... it's not like the cops will cross the median to pull you over!
Luke: Zack.... shut up ass hat!!!
Luke: Zack.... shut up ass hat!!!
by Luke and Zack July 24, 2008
Get the ass hatmug. 1.the word andy milonakis faxes in his show to the person who kept calling him.
2. A hat for your ass
2. A hat for your ass
"Stop calling here, Ass-Hat"
by lxfactor September 13, 2005
Get the ass-hatmug. Ass hat means idiot and is of course an offensive word. A word that is pronounced like the word asset.
by fetto April 24, 2006
Get the Ass hatmug. 
A device used to retain faeces in the anus. Comes in a variety of colours and brands, and can be used to stash faeces in readiness for a "Turd Twister".
by haze January 17, 2004
Get the ass-hatmug. 