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
by razer March 22, 2005
 Get the ass clownmug.
Get the ass clownmug. 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.
by MNWHREDLX February 24, 2009
 Get the Ass Clownmug.
Get the Ass Clownmug. by A'ss K'loun January 30, 2003
 Get the ass clownmug.
Get the ass clownmug. 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 August 18, 2005
 Get the ass clownmug.
Get the ass clownmug. by Mark Whitney June 7, 2004
 Get the ass clownmug.
Get the ass clownmug. one who is completely retarded and makes his or herself look like a complete ass at all times no matter the occasion.
by robby adkins October 3, 2009
 Get the ass clownmug.
Get the ass clownmug. by Jakabones January 15, 2006
 Get the Ass Clownmug.
Get the Ass Clownmug.