Or... If you don't have grandchildren, what did you call your grandparents? My DGD's call me Nannie. It was supposed to be Nana but, the oldest called me Nannie and now the others do too. They call my DH Papa. My best friend called her grandfather Papa and I liked it so I encouraged the girls to call him Papa. My grandmother was just Grandma and my Grandfather was Pap Pap. My Dad always called his father Pap so I guess that's where Pap Pap came from.