Grandpa hands is when you soak your hand in warm water for 20-30 minutes. When your hands are good and wrinkled you pleasure yourself, just like your grandpa used to.
Last night I sat in the hot tub to long so I thought I would take advantage of my grandpa hands and pleasure myself.
by mellow man 77 August 13, 2011
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When you soak your hand in a bowl of cold water before masterbation so it gets that nice wrinkly grip.
I grandpa handed so hard yesterday.
by Spirit buffalo August 10, 2018
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Poor ability to use your hands in a precise and coordinated way.
Lincoln pressed the jump button when he meant to press dodge, costing his team the win.
He's been doin it all game.
Freddy has a case of the grandpa hands.

James kept dropping the wrench, even tho he didn't have to hold it weird, and the job was really straightforward.
James has grandpa hands.
by jaebbles May 2, 2023
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