A tag-team combination during a threesome involving 2 females and one male in which one female is a nutterface (girl with beautiful face but an unattractive body) and one female is a butterface (girl with a nasty face but a gorgeous body).
Person 1: Ay babe, you want a nutter-butter?
Person 2: Yeah! I love those
Person 1: *takes off pants, covers dick with butter*
Person 2: Ooh, that looks tasty