Hiawathas Breakfast Share definition Flag The act of taking a dump in a roasting pan and leaving it in someones fridge. That bender I was at really blew, so I left them a nice Hiawathas Breakfast to wake up too. Hiawathas Breakfast by Cam81 July 21, 2008 0 0 Get merch Get the Hiawathas Breakfast mug. Buy Now — $32.95 See more merch