I always called my grandma AAAH ! because I could not say ABUELA (Were Spanish) My Grandpa was PAAAAAH ! I Guess I couldnt say PAPA. It just stuck. Abi-Gabi - All the grandkids in my exs family used that name for their grandmother. The name came from baby talk by one of the cousins. Aito: My grandkids call me Aito (Ah-ee-toh). It is short for "Abuelito" which is a diminutive for "Abuelo" which is grandfather in Spanish. All Right Lou -- When my husband was a very small boy, he was always greeted by his jazz-playing grandfather with a "Gimme Five. [high five]. All Riiiight!" -- Thus, he soon became All Right Lou. Alvin and Butter-butt : My daughters started calling my father Alvin because they thought he had puffy cheeks like Alvin the singing chipmunk. They call my mother butter-butt because while they were camping, she backed into a trash basket and got a butter wrapper stuck on her butt. Ami: I called my mothers mother Ami, pronounced as in the French "mon amis", I dont know what it came from. Recently we had our first son, and my in-laws wanted to know what they should be called. My ingenous 11 year old sister-in-law came up with the names "Amma" - for the Grandmother and "Adda" for the Grandfather. She derived the names from lord of the rings when one of the Elves were talking. I really happen to like the names, i beats calling them Grandma or Grandpa ( insert last name).