Cock Weasel

Someone who does everything in their power to show everyone that they are the most snively and twofaced little shit. The kind of person you just want to slap right across the scrotum. Like Dave the little dick! That absolute forskinning, cock weaseling dick! Oh yeah, it can also be used as a verb I guess.

That dude is a total cock weasel. He's almost as bad as Dave.