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Refers to the face or mouth, usually accompanied by the words "wash yah" or "sha fucking" Derived from the English word "mouth."
"Hey Lionel. If you don't wash yah meish, I'm going to ask you to leave the party."

"I'm going to wash my meish and then go to bed"

"Sha fucking meish!"
by Fucktendicks Ballface February 12, 2009
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