Anyone outside a Communist country who supports communism or thinks they're a communist, usually an American Liberal.
Stewart is a Comtard. He said that we would be better off with a centralized government where the workers control the means of production.
When your cable company promises to come out to fix your cable TV and Internet, and you apparently weren't home even though you were.
"Sounds like your service is Comtarded!"
It's when you're retarded when it comes to computers.
Ace: My grandpa is so comtarded.