Haha, this is really weird to read! I never thought how confusing some stuff could be to people who haven't seen it before.
I can add some for you that I guess I use a lot!!
GG = Good Game (usually used in gaming!) LOL = laugh out loud! an acronym! noob = somebody who's new/bad, like an insult! I only use it jokingly unless I'm in a game, though. Stream = Watching somebody do something online! I used to stream video games and now I stream my MEKA battles.