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1 definition by FordJN

The act of snooping into other peoples conversations, pictures, information, etc. when you are using the social networking program Facebook. Especially if the person you are creeping on is not a close friend and just someone you hardly know or don't know at all in person.
How did you know they were dating?
Oh, I was facebook creeping last night.
by FordJN May 25, 2011