2 definitions by SouthernGrip69

Having sex with the dead, flaming fetus of your unborn sibling while underwater.
Nick is so into necropyrofetalincestualsubaquatic coitus.
by SouthernGrip69 May 23, 2010
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An acronym (Mutual Manual Coitus) that refers to the act of two people (m/f, f/f, m/m, etc.) simultaneously masturbating each other.
You down for some MMC tonight?
by SouthernGrip69 May 23, 2010
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