To be so uberly cool that it's beyond cool, beyond awesome. Better than Schiff is Uberschiff.

a skiff is someone who is dirty they're just gross no matter what they do or how they look their just nasty its like someone who is just ew and they're so dirrty you just wanna throw a phone book at them haha george ur a schiff!! You will never understand, its like worse then calling someone a tool or a poon face!