Elvis to Gladys, Elvis to Priscilla, Priscilla to Elvis. Priscilla tells us in her book that Elvis and Gladys called each other "Satnin" (a form of Satin) and Elvis and Priscilla would also call each other that. Elvis and his mother used baby talk like, "Look who's come to see little us." I'd never read about Gladys calling him "Booby" as she does in the film, but I'm sure that came from someone's memories of the two.