Definitions by StrawberryRedHead

Big Grandma 

"Big grandma" is one of your two grandmothers who is the elder one. Big grandma could also be the great-grandmother.

(Think of it like "big brother; big sister" bigger as in older.)

My "big grandma" is my great-grandmother and she's older than my grandma.

Big Grandma by StrawberryRedHead July 30, 2011