Etiquette used by people who are new to video games (noobs) such as writing with grammar and spelling that resembles ancient runes on video game websites, calling other people noobs when you are one yourself, writing like "u gt pwnd, bitch!", writing in leet, or being an overall obnoxious dumbass who gets on everyone's nerves.
Guy One-"u jst got fukin pwnd!"
Guy Two-"Dude, you're a dumbass. Don't use fucking noobiquette."