Steven, a 58-year-old doctor, said he didn't want a typical grandfatherly name, either, because "I still feel like I am 25." So he chose to go by "Papa Doc." He was going for a Marcus Welby, M.D. vibe -- after the mellow, graying doctor in a popular television series in the late '60s and early '70s -- but unfortunately the name reminds most people of the late Haitian dictator, François "Papa Doc" Duvalier.
Growing up, I called my mom's mom "Nana" and her dad "Grandpa." My dad's mom went by "Grandma." My nephews call my in-laws "Grammy" and "Grandpa." I like these titles; they're familiar and no one is confused by whom you're talking about exactly. Coco could be your family's Labrador or a French exchange student. These new age titles are ridiculous; calling yourself Glamma doesn't negate the fact that you are old enough to be a grandmother.
What did you call your grandparents?