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Short for "Social Networking Artificial Face eXchange." This is when someone fakes being someone else on a social networking site. Typically done to get the someone else in trouble, start a fight or just trash the someone else's reputation.
Dude: "Hey, why did you say you were showing up last night on Facebook and didn't show?"

Chic: "I didn't say that on Facebook. I wasn't even on Facebook last night."

Dude: "I bet your roommate that you got in a fight with last week snafx'ed your Facebook."

Chic: "That bitch!"
by Steve-er July 16, 2009
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Aug 7 Word of the Day
A celebrity free pass is an agreement between you and your significant other that if you meet said celebrity and there is an opportunity to sleep with them, your partner cannot get mad at you for doing so because you had agreed before hand that this person was your celebrity free pass. It is ideal if both of you in the relationship choose a celebrity free pass so that the playing field is even.
Julia met Drake at a bar, and hooked up with him, knowing that her significant other could not be mad at her, because Drake was her celebrity free pass.
by gingerale011 March 25, 2011
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