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Definition of waffle. : a crisp cake of batter baked in a waffle iron.
Waffle describes something with a grid pattern. An example of waffle is a thick grid pattern on a winter tee shirt; a waffle pattern. The definition of a waffle is a battercake which is cooked in an iron form that gives it a deep grid pattern. An example of a waffle is a square cake eaten for breakfast with grooves that hold butter and maple syrup. Waffle is defined as to go back and forth on an opinion in speaking or writing.