(in Roblox and other online games) A term usually used to refer to people who are new and/or new at a game. It can also mean a person who doesn't buy in-game currency as well as cosmetics. A typical noob in Roblox would have the following things: yellow head and arms, green legs and a blue torso. In another game, Fortnite to be exact, a noob would have the default skin, glider and pickaxe equipped and nothing else.
Person A: What a noob!
Person B: Hey! I'm not a noob.
Person A: Shut up, noob!
A more offensive version of "newbie". A person that is bad at games.
What a noob! You suck at this game.
The non-binary/enby term for boob. (see also, moob)
That's a nice noob you got there, can I see the other?
They've got some good noobs.
Manel is such a noob!
Ahahahah, do you already see Manel playing, he's just a noob!