Merriam-Webster Word of the year.

Is w00t! They say the acronym originated with gamers to represent, "We owned the other team," I generally just use it as an exclamation of awesomeness.

The official definition: (interjection) expressing joy (it could be after a triumph, or for no reason at all); similar in use to the word "yay"

All I have to say to that is,

woot.