jack sock
A sock that gets used for jacking off, usually crusted and smelly, buried under a pile of clothes in a boy's room. Also the name of a guy who can't hit a tennis ball to save his life.
My sock smells like a dead raccoon and I'm not even mad about it.
Found my sock under my bed. It's got a life of its own.
Jack sock is my new favorite hobby. No more pants.