The word has a couple of meaning depending on the context in which it is used.
1. It can be used to when asking someone for something.
” Skief mints daar.”
2. It is also used to say shady.
Y’all going on about my pinky because of the angle but don’t wys your friends they look skief when they take photos from the wrong angle 💀🤣🤣
— Dylan (@1dayvacay) May 29, 2019