1. One whose stupidity and/or ineptitude exceeds the descriptive potential of both the terms ass and clown in isolation, and in so doing demands to be referred to as the conjugate of the two. 2. A male who engages in homosexual behaviors. See butthole surfer
1. Steve is such an ass clown!
2. Steven is such an ass clown!
by razer March 22, 2005
A stupid person, one incapable of making rational decisions.
Chris acted like an assclown at his party. He talked shit and was proven wrong at every turn.
by dadaevan May 30, 2008
A person who doesn't use common sense.
did you turn off the water. Stop being an Ass Clown
by Zmon June 29, 2015
One who has had their head firmly inserted in their rectum for such a duration of time that they have become high on methane and now think that they are in fact brilliant masterminds of the universe here to solve every problem. Scientific studies have yet to conclude whether breathing your own methane for too long causes permanent mental retardation.
You: Hey what are you doing with these boxes?
Ass clown: Hey don't touch those! They're getting recycled because the earth is green mmmmmmmmmkay!?
You: They're in the doorway ass clown, move 'em!
by Herr der Qual January 21, 2015
A moronic fool full of nonsense. Waste of human life.

Newt Gingrich.
"Newt Gingrich wants the poor kids to work as janitors, cleaning up after the rich take a shit in order to prepare them for the future reality they will grow up in to. He's a typical assclown politician"
by R e a s o n March 07, 2012
someone who thinks they are at a point where everything they say and do is correct, when in fact everything they say and do is dumb and completely hilarious. Tend to be Canadian.
My friend Kevin thinks that thumbs grow back if you cut them off, he's such an assclown
by bob cox eb September 25, 2011
A pompous and inconsiderate person suffering from illusions of importance and grandeur. This person may also exhibit general hostility toward others and display an air of genuine douche baggery if confronted. Such person may make reference to him/herself by using the third person.
Ex: The dude who drives the blindingly yellow Porsche convertible that double-parks each day in the filled to capacity parking garage is a real Ass Clown!

Ex: The dude who just spilled beer on a group of old ladies while plowing through three kids to catch that foul ball at the Royals v. Blue Jays spring training game is a real Ass Clown!
by EPWONG March 29, 2011
Heres the REAL definition of assclown...
Someone that says a joke only he thinks is funny and no one laughs.
Neutron: How much for a beer?
Bartender: For you NO CHARGE HA HA HA!!!!!!!!!!!!
Neutron: ..................................... Dude ur an ASSCLOWN
by nirvvboner October 29, 2010

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