The woot i'm talking about has nothing to do with rappers. I always see it in computer forums and people who are familiar with technology, don't find many rappers in forums using the term. Also it seems to be used with an ! kinda like saying woo hoo but derived from some where else. THe doom thing kinda makes sense as i remember playing that and the guy did sound like he was saying woot when he jumped but i think it was probably around before that and also i've heard of the woot being derivated from root as in computer code so to me those seem to be the most likely.