fuffbay Share definition Flag Birthday. Used by Wilbur Swain and his twin sister Eliza in the novel Slapstick (or Lonesome no More!) by Kurt Vonnegut Jr. (1976) It's my fuffbay tomorrow! Happy Fuffbay! fuffbay by MCDoodle April 20, 2007 0 0 Get merch Get the fuffbay mug. Buy Now — $32.95 See more merch
