(phonetically) My oldest granddaughter calls me Pawguh. Goes back to when she first started talking, and my son/her Dad called me and put the phone to her mouth and said ...
"Say hi to Grampa."
She said "Hi pugga."
"No, no, honey; say Grraa-m paa."
And she said "Paaaw guhh."
Another granddaughter calls me Dahtoo, short for dad #2.
The rest call me grampa and gramps, and Michelle is Meega.