Top Definition
Like a Wing Nut, broad across the middle. Most evident when a girl is wearing a pair of jeans that are too tight and her body is contained by the jeans, but shifts from side to side inside her pants when she walks.
Look at that girl, trying to hide her big butt in those jeans, I can see that Wing Butt from a mile away.
by DeanYoungblood December 12, 2006
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