People who sit around on the internet all day talking trashacting tough and hardcore. Computer nerds, Elitist gamer assholes, and just regular computer junkies who feel superior because they know more than somebody else ONLINE and feel like they have to terrorize them.
Ex1:
"i'm sick of all these netcore kids sitting around talking smack to all the newbies"
Nub*core; n. 1. A player that is so newb he has surpassed the level of newb, noob, and nub. 2. A nub so godly at being nub that it's nubcore. 3. Extreme, undescribable nub. 4. Stephen Dale.
Mary pwned Steve with an SCV, when steve had 24 Battlecruisers on LT. (Didn't know how to attack) Mary says "YOU FUCKEN NUBCORE NOOB!!!!!!!! YOU SUCK!!!"
When a guy will insert his dick into the bottom of a popcorn bag/container via a hole, and his lady friend will reach for the popcorn and give him a hand job.