233: Derived from Maopu emoticon No. 233, which is an emoticon of beating the ground and laughing, so many netizens like to add "233" when posting in Tieba and forums.

666: 666 means "Liu Liu Liu", which is a buzzword on the Internet nowadays. It is often used when playing games, and it means that you are very good. Sometimes it can be considered as mocking others

ww: Wind Step, the skill of the Juggernaut in Warcraft