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The act of holding down an unwilling participant and placing your rectum over both their eyes leaving the look of sunglasses made from feces.

This is also to done to assert dominants among young men and leaves the victim feeling vulnerable and ashamed.
"Hey new kid looks like a beta faggot lets give him a prison-mudshade"

"Yea I'll hold him down and you wipe your ass on his eyes"
by Annonnnnnnnnnnnnnnnnnnnnnnnnnn October 24, 2012
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