A condition affecting women where there is so much atrophied loose skin in the triceps area that it hangs down to partially cover their elbow. Also known as GMA's. Often seen on both pre and post {lap band} surgery patients.
"When I laid her on her back and she grabbed the headboard, her sleeves rolled up and exposed her grandma arms. It looked like she was wearing flesh colored {waterwings}."
by kid spranks February 13, 2009
Get the Grandma Armsmug.