How could I forget? My grandson gave me the best nickname I could hope for, which is Jamma -- based on his toddler-aged efforts at Grandma. His earlier version was Dramma, and I was willing to accept that, but when it evolved to Jamma, I said, "Whoa, stop the tape, that's a keeper!" When he later, pretty quickly actually, became able to say Grandma he was a little confused at my insisting on being called Jamma. It's way cooler, imho.

(I think "jeu de mot" is great! It's actually very funny and clever -- even after being explained.)