A complete jackass that does not realize how much of a tool he actually he. Does stupid shit constantly, and thinks people are laughing with him, when they are in fact laughing at him.
Did you hear that Chad Johnson wants to change his name again? That guy is a complete ass clown.
A talentless boob that stumbles into good fortune, unwarranted praise and kudos from top organizational men despite their complex idiotry and meritless grounds of employment. A large number of middle and upper management falls into this designation.
Everyone you hate "Billy the new guy in the cubicle across from me was invited to lunch by Mr. koknballs to celebrate his newly bestowed title of Ass clown"