What is Nubfuck?
1.
To fuck with a nub. For instance, if you have no arms, but you have nubs, you can insert your nub into someone else's region, and thereby nubfuck them.
Micaela: "Oh God, your nubs are so tender!"
Nubby: "Yeah, I'm pretty good at nubfucking."
See
2.
Yet another
go away you nubfuck!! you totaly suck at wanting to be 1337 you horse raming little shit!