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.
von dadaevan 30. Mai 2008
A person who doesn't use common sense.
did you turn off the water. Stop being an Ass Clown
von Zmon 29. Juni 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!
von Herr der Qual 21. Januar 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"
von R e a s o n 7. März 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
von bob cox eb 25. September 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!
von EPWONG 29. März 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
von nirvvboner 29. Oktober 2010

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