a "feit faen" or otherwise reffered to as a "Fat fuck" is a person whom is extremely lazy and annoying. All they do is sit on their fat ass and expect other people to do everything for them. If you ever encounter a Feit faen you should call them a Feit faen and not help them.
Random person: Hello have you seen Per? I think he needs something to eat
Me: No, but hes a feit faen, dont do what he says
Random person: Ok i will not