When I was going to be a grandmother we started wponder what we would be called. Both sets were going to be grandparents for the first time. Even though we kept sawing grammy and papa some how she decided what she wanted to call us. We are Nunny and Papa and the other set are Lully and Pappap. Where she came up with Lullie and nunny we have know idea. But it's not the most unusual I've heard. My neighbor boys call the grandmother, Donnel. lol