Woot! or W00t!

Believe it or not, 'woot' was named a 'word of the year' by a prestigious English dictionary publisher. Since I've only recently become a regular computer user and have never been a gamer, this interjection is one that I've never used. Since I am an English teacher, I suppose I should be aware of such a noteworthy utterance. Here's another link with lots of comments about this 'ritual' listing of English 'words of the year.'