Sharies is shared masturbation, but not the same as mutual masturbation as you only masturbate yourself. The term was invented by teenager Mindy Yuko.
"Sharies is when you and a friend each take care of yourself but not each other. Usually you do it when you're sitting together and holding hands. Group sharies is when you do it with a group while you're sitting in a circle. But you can't do sharies if you're holding hands with two people! lol"
- example: I love doing sharies with my best bud Lorien. She totally squeezes my hand when she cums! Sweet!