They are the small, oddly shaped fries, with one non-waffle side at Chick-Fil-A. Chances are, you may not even notice them, but there they are, lurking near the bottom.
It comes from the end of the potato when it's sliced to be made into fries. It's not a whole waffle fry, but more half waffle, half butt. Hence, Waffle Fry Butt.
You might be a Waffle Fry Butt fanatic, but personally I can't stand them. They taste uncomfortable in your mouth, like you are eating a piece of fried skin. It's smooth and a little darker than the rest of the fry.
My question - why does Chick-Fil-A keep the butts?