A Pabster is a punk ass bastard. It can also be someone who drinks a lot of Pabst Blue Ribbon, a low quality, relatively inexpensive brand of beer. If you happen to be a punk ass bastard and drinking a Pabst at then same time then you are a dabster (short for double Pabster) or a "pabster dabster".
Ritchie is a Pabster !!!