Nubscrub
It is an insult used in any way.
Man, that guy is such a Nubscrub!
Nubscrub
A lightly used insult referring to someone who is being a noob and you are calling them a scrub.
Person 1: "Hey guys! In Super Smash Bros, throw off the ledge to down smash spike is a true combo!"
Person 2: "Your such a nubscrub. That's impossible."
Person 2: "Your such a nubscrub. That's impossible."
nubscrub
Alternate spelling of Scrubnub. Someone who not only is calling you a nub, but a scrub as well.
That WoW player is a nubscrub, all he ever does is call people nubs and scrubs.