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When a man cums in his hand and feeds it to a woman. She eats it like an oyster. Short for Man Oyster
Every woman she try a moyster!
by Skippy Whitlock June 26, 2010
Cross between a mollusk and an oyster. (Informal Portmanteau)
The moyster would be very delicious... if it existed.
by mollusca October 23, 2011