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When an older woman loses all shape and her breasts drop to her waist and her arse disappears into her legs (fly arse) She must have the pensioner hunch on her back to qualify fully to be a Grandma Body. She can't do a lot like bending over or walking properly due to the mis-placed gravity around her sagging appendages.
"Ask her to touch her toes..."
"She can't. She has a Grandma Body..."

"Hey! Stand up straight when I'm talking to you"
"She can't. She has a Grandma Body."
by Erica Cantona October 02, 2013