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When two people poop back and forth into one another's ass holes.
My girlfriend and I did a Mexican Christmas last night, and now I have the shits and can't tell if it's hers or mine.
by Matthias Brown October 17, 2010
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2
When two men with real sleazy spic 'staches hook up, and instead of finishing off on/in eachother, they cum on someone's Christmas presents. It's a once a year event. Quite the spectacle if you're ever lucky enough to see one.
Hey sis, I think I can hear Dad and Santa Clause having a Mexican Christmas tonight on Christmas Eve!.... Nevermind, it's just Dad and Little Timmy... again...
by Hipster H March 31, 2011
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