1.) Something to say out of anger or exasperation.

2.) A derrogatory term for animal poop.
Example:

1.) Person 1: "You know you have to do the science worksheet AND the lab for homework, right?"

Person 2: "Oh Flabbin Mingle Pancakes!I had no idea!"

2.) "That woman over there smells like Flabbin Mingle Pancakes!"
by Sid the Science Kid May 16, 2011
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