The word, complete with zeroes instead of Os, has become widely used in chat during online games or chatrooms among those celebrating. Merriam Webster defines it as "expressing joy (it could be after a triumph, or for no reason at all)".
In a statement Merriam Webster president John Morse said it was a good choice because it blended "whimsy and technology".
The word "W00t" got most votes in the poll looking for the word that best sums up 2007.
clipped from: news.bbc.co.uk