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The Mayonnaise Game is any time in which a man ejaculates on a face; for example, the money shot of porn is considered two people playing the mayonnaise game. Usually, the person receiving mayonnaise wishes they weren't playing.
"Hey Becky, do you want to play the mayonnaise game tonight?"
"No thanks Todd, I already played with Danny earlier."
by Mayonnaise King January 26, 2010