1. A noob is a person who really sucks at a game but refuses to learn/listen to people who are skilled. Many of them may have been playing the game for a while, but still suck at it. They usually have no hope.

2. Noobs generally get extremely upset over being beaten and can not admit that they are bad at the game. Often they will accuse the skilled people of hacking.

3. This word is an insult in general so people often wrongly use it and just call somebody that they do not like a noob, regardless of skill.

4. This term is often confused with the term "newb," and people who confuse these terms are usually either noobs themselves, or somebody who is good but is just mean (and has a lot of pride for being skilled).

Newb
1. Newb comes from "newbie." Somebody new to a game and they will generally suck at it. However, the reason that they suck is because of their unfamiliarity to the game. They have the potential to become good. This is not a derogatory term.

2. Also, newbs are not always bad at the game, as they may have played similar games in the past, but when it comes to knowing where things are, or information- they don't know.