wampeter Share definition Flag The pivot of a karass, around which the souls of the members of the karass revolve. From Kurt Vonnegut and the Books of Bokonon. A karass has two wampeters at any time, one waxing and one waning. wampeter by Mister Helpful July 20, 2008 0 0 Get merch Get the wampeter mug. Buy Now — $32.95 See more merch