iām from northern alabama, and iām not 100% sure this is completely southern, but it killllls me every time i hear an older relative say it. itās so brutal.
another one is āyou think youāre shit on a stick, but youāre just a fart on a splinter!ā
there are many more, but those are the first two to come to mind. they just donāt make sayings like they used to.