What do people call their grandparents? Sure, there’s Grandma and Grampa, but there’s also Gammy, Bumpy, Dadoo, Gre-Gre, Kiki, Kerkel, Monga, Nee-Nee, Pots, Rah-Rah and Woo-Woo. Martha and Grant talk about the endlessly inventive names grandchildren call their grandparents. This is part of a complete episode.