1. An individual that is considered to be a newbie (newb), noobie (noob), or nub.
2. An individual that is new to something.
3. An individual that is not very good at something.
The new guy is a nubski, he has no idea what he's doing.
Wow, this guy is so bad at this game. What a nubski!
The Polish meaning for the slang "nub" which stands for n00b, or newbie.
Man 1: Helllllz yea! I just beat COD4 on EASY SETTINGS!!
Man 2: ROFL!! YOU NUBSKI!!