Person: I'm craven a fag now after this wank.
Person: I'm craven a wet willy.
Person: On Craven!
Just before your friend is through with a girl, you start to move in on her. 'Pullin a craven'
Don't you fuckin' Craven me this time. I actually like this broad.
A Craven is said to produce too much blood, and therefor, they need to relieve themselves of it daily, to prevent themselves from drowning within themselves.
Craven's are said to be the perfect companions for Vampires, if only they were able to walk within the same light.