howdily doodily Share definition Flag Saying "howdy" like Ned Flanders from the Simpsons, a greeting Flanders: Howdily doodily neighborino! Homer: Shut up Flanders. howdily doodily by Blasto the Wonder Dog October 19, 2010 0 0 Get merch Get the howdily doodily mug. Buy Now — $32.95 See more merch