An insult you can give to one who has a face on their head. This insult works for pretty much everyone, seeing as a face is standard equipment on a head. It isnt meant to hurt anyones feelings, just something you use when you cant think of a real insult. Usually end up with follow-up insults such as noseface, or shoefoot.
1: Man you suck. You cant play madden for anything you cock jockey.
2: O yea, well... your a...uh...FACEHEAD! yeah, there.
1: Um,, what?
2: Yea thats right, you stupid facehead.