2: People who are fuzzy and strange.
To fully understand nubs one needs to watch the scene in Paul Blart: Mall Cop when he's drunk at the bar and goes up to the Indian guy and is like "feel the nub"
nub: "Dammit dude, i was making this sickass map in minecraft, and i accidentally closed it out..."
otherguy: "lol nub."
nub: "LoL dude, I almost killed you there. You so got me!"
pwnr: "... -.-. whatever nub, just fuckin play and stfu"