Noobisms are epic, even poetical thoughts, such as aphorisms, but by noobs. The Internet is a infinite source of them, since they are said/done all the time, and are often published because of their amusement value.
Teacher: "Remember, you can't bring MP3 players!"
Noob(female): "Can we bring iPods?!"
-People ROFL-
a noob-aware person to another: "OMFG, that was the BEST noobism EVER!"
A person who can never excel at their task, regardless of time spent practicing. In gaming, this individual is a constant source of loses when playing in a team, causing immense for to those players unfortunate enough to have the noob on their team. The upside to Noobism, is that they provide provide a steady, easy source for acquiring wins.
Fortunately for those affected by Noobism, they appear to remain blissfully unaware of the hopelessness of their condition, and strive endlessly to compete, to the detriment of all they team with.
The Noobism is state of being, like alcoholism. I suppose you could say, "He/She suffers from severe noobism"