'Bless Your Heart'
Translation: "I would ordinarily say, 'You, Sir, are an idiot of the first order and proof the best part of your father dribbled down the crack of your momma's ass. Please go die in whatever manner you see fit', except I'm a good person, so I bless your heart instead on the theory that our Great and Glorious Lord Above would take notice and send a pack of rabid coyotes to remove you from the gene pool... And because not actually saying those things means I can still get into Heaven, where I'll have a balcony view of your eternal torture. "