Definitions by Kain91

Assclown 

One that is a complete mistake to existence, and absolutely terrible at everything they do.

For those who play Call of Duty/other related video games:

"That guy I just knifed is an assclown."
"Get knifed, assclown."

For regular use:
"Wow, look at that guy. What an assclown."

Assclown by Kain91 April 26, 2010