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1 definition by Matie Chulick

To browse Facebook users' profiles constantly without their knowing, especially when they are not your friends and you are judging them as you do it.
Katie: "Hey you wouldn't believe who added me on Facebook, Fre-."
Michelle: "Fred Thomas, I know, and he commented your pictures."
Katie: "Hey, how did you know?"
Michelle: "Oh, I was just FaceStalking last night."
by Matie Chulick July 03, 2009
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