I hung up on Ranger and called Grandma.
Bil's mother (Florence, but usually called Grandma) appears regularly in the strip and apparently lives near the family.
It was Jessica who knocked on the door, calling, "Grandma, I need to talk to you."
You'd better call Grandma and let her come over to have a look before you turn it in.
That was the first time I felt loved by this woman I called Grandma.
I called Grandma and told her I'd pick her up at seven.
"I called you and Grandma less than a week ago."
Jon is the one to decide to call Grandma without needing Garfield to offer the idea.
"I called Grandma on my cell phone."
Midge has two known parents who are simply called "Grandpa" and "Grandma".