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Definition of waffle. : a crisp cake of batter baked in a waffle iron.
âI love to eat voffles on my wessel.â. Invented by a group of scientists (one of them was Johnny Waffle) and Mohandas Karamchand Gandhi working for the Belgium secret police in 1897, the waffle was designed to serve as an alternative to the pancake, an old standard in European and American breakfast cuisine.