wilky button 

1) On a whole chicken frier, it is the flap of fat that covers the ass of the chicken.

As kids we use to fight over who got the wilky button.

wilky button by cunninglinguist April 27, 2005

Button Scar Willy 

This happens when the victim stands up after sitting around a campfire for awhile with button fly jeans. The heat in the metal of the buttons well you know........... it burns scars on your dick.

Man when we were camping last weekend joe got a button scar willy.

Button Scar Willy by Crimsonshadow66 June 6, 2009