furnhorn Share definition Flag a really boring old guy who spends to much time on his porch. often eats hard candies. guy: wow. that old guy has been on his porch for 5 hours.0-0other guy: yeah. he's such a furnhorn. furnhorn by mumba jumba September 11, 2010 0 0 Get merch Get the furnhorn mug. Buy Now — $32.95 See more merch
