It’s a little known word derived from the Norse wüt , which means “Hey, Dagmar…come get your stinky goat outta my cabbage patch before I have to go and get all viking on you!”*
It also just struck me as the appropriate sound for a guy with no bones to make as he’s straining with every fiber of his being to point at something.
*getting “viking” on someone is not really as scary as it sounds, depending on who’s doing the viking-ing. It can range from burning and pillaging all the way down to simply forcing someone to listen as you recite a 13-hour long epic poem about a man and a bucket of curdled milk. Or, if the person dealing out the vikingness happens to be a woman of rather zaftig proportions, she may choose to mete out her Nordic vengeance by singing opera.
This latter form, of course, has been banned by the UN and the Geneva Convention as cruel and unusual punishment.