an insult that is put in between two compliments to lessen the blow; also known as a back handed compliment.
Shannon: hey emily, i really like your new haircut!
Emily: oh really, thanks!
Shannon: yeah it doesn't make your face look as fat
Shannon: yeah it looks hot though!
-later that day-
Hannah: hey emily did anyone say anything about your hair?
Emily: well, yeah shannon did, but it was a total sandwich compliment