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The act of performing the 69 position with the woman on top, where she simultaneously explodes with shit all over the man's face, and violently vomits all over his penis, with or without warning or consent.
Man: "I had a one night stand with a bitch and I thought we were just doing the 69 position, but she ended up doing the vomitsty-nine position on me. I'm no longer psychologically able to be intimate with women."
by GentleOnJames November 16, 2014
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