fiddlesticks and flapdoodle Share definition Flag a very cool thing that professor yaffle says when he can't believe something. go bagpuss! ahh fiddlesticks and flapdoodle!! fiddlesticks and flapdoodle by :poisonedheart: January 14, 2004 0 0 Get merch Get the fiddlesticks and flapdoodle mug. Buy Now — $32.95 See more merch