A person who knows absolutly nothing about his job or trade but can tell everyone else how to do it better!!
My General foreman is a real ass clown,he could'nt wire a fucking hefty bag closed but he can tell me I'm not moving fast enough.
by Shitstick July 21, 2005

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Having the characteristics of a classic bastard child, usually male. Often is a bastard child. Lack of father figure and discipline along with spoiling by female birth unit, creates common character traits such as:

- Starts conversions with people who resent him, yet he continues, enjoying himself the entire time.
- Uses people's valuable time with out permission.
- Thinks "no" means yes.
- Conceived through sin or badly mistaken choice of sperm donor, and mother failed to get an abortion.
- Lives in permanent narcissistic fantasy world that no amount of talking or punishment can change.
- Thinks he knows better then others even after non-stop life failures.
- Does just enough to get by, which usually involves living off others.
That ass clown lived off me for a year, and never paid rent.
by CalisDead May 04, 2009

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popularized by the film "office space" this refers to a dickface who has in some way wronged or annoyed you or is in general a prick, take for instance: Michael Bolton
exerpt from a scene in "office space"

Samir: No one in this country can ever pronounce my name right. It's not that hard: Samir Na-gheen-an-a-jar. Nagheenanajar.

Michael Bolton: Yeah, well at least your name isn't Michael Bolton.

Samir: You know there's nothing wrong with that name.

Michael Bolton: There was nothing wrong with it... until I was about 12 years old and that no-talent ass clown became famous and started winning Grammys.
by deadprez92 December 26, 2006

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Roy "Big Country" Nelson who is a better coach then Shane Carwin from TUF 16 on FX and who is an entertainer who can laugh and show is ass and still fill your life with joy.
That ass clown made be laugh so hard I pooped my pants. Roy Nelson is a coach that made me a better fighter and person while Shane Carwin watched.
by UFC Fan - Dana White September 12, 2012

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a person who is a total moron, or who makes an attempt to do something but ends up failing miserably & entertains everyone around them
When we were all drunk at camp, our friend Mike tried to jump over the tennis net, but ended up making a total assclown of himself.
by Kimberly Nicole July 23, 2008

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ass clown - with narcissistic features: Someone in a leadership role who can barely keep a grip on normal behavior. This individual, while seemingly capable on the outside, is constantly battling the need to control and feel superior to her subordinates in the workplace; One who needs a great deal of reparative therapy and/or medication.
I don't think I have ever had my conversations eaves dropped on by a more despicable ass clown. Employees are cautioned not do too well or get too much positive attention in this workplace or you will draw the negative attention of this crazy ass clown. How many unhappy and traumatized former employees can one organization produce?
by Traumatized April 22, 2008

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1)a person who does something beyond stupid.

2)someon who does something stupid for attention.
This kid is such a fucking ass clown.
by ROB M. November 10, 2006

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A form of the more common Failure combined with an Ass Hole. Basically a combination of the worst traits of both: the mental, social, and physical shortcomings of a Failure, with all the obnoxious douchebaggery of an Ass Hole.
1. Joel may be a Failure, but at least he's not an Ass Clown...

2. Shawn is indeed an Ass Clown
by MNWHREDLX October 20, 2008

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