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The skin abrasion acquired when one chooses to partake in any of the Mario Party Games offered for N64 which require rapid friction between the joystick and the users palm; usually in a circular motion.

This can can also appear as a blister, and often painfully peels away over the following days.
"Woah, why is your hand all bandaged up?"

"Mario Palm. The Tug-O-War had me going bat shit crazy."
by cakeoh January 06, 2012