numfutz Share definition Flag Someone who has their thumb up their ass and generally has no clue what is going on...sounds much better than dumb f#@%! When she asked her husband to help with cleaning house, he acted like a numfutz. numfutz by Sue Honey December 22, 2009 0 0 Get merch Get the numfutz mug. Buy Now — $32.95 See more merch
