assclown

A jerk; a buffoon; a person who is inept or ill-behaved to the point of being found laughable by others.

Near-synonyms: assmonkey, assmuncher

This newsgroup--misc.immigration.usa--has a wide range of posters, some of which have legitimate concerns about legal immigration. Do you like being the AssClown. Let these people be, let them ask their immigration question free from your xenophobic harassments.

A jerk; a buffoon; a person who uses their nature to bring humor to others, but ends up being the butt of a joke.

I'm a little loaded, and this assclown behind me has bumped me four times in a row.

"Pretentious, ambitionless assclown," I corrected.