Using facebook to emabrass or hurt someone. This can include creating fake accounts, changing someone's existing account or posting embarassing messages and photos.

"Someone created a fake account in Troy's name. He was the victim of Facebook Terrorism."
by Jon Hughes October 14, 2007
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The act of tagging a photo in Facebook incorrectly with the intent to cause humiliation and/or yuks knowing full well that the photo will be sent through the target's News Feed for all friends to see.
Dude, Tori just pulled some Facebook Terrorism and tagged me in a photo of a bum sleeping on the street. That shit went out to my friends in the News Feed. Suxor.
by meow mix Muto October 1, 2008
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The act of interfacing various postings and privacy settings on one's own facebook page in a way that is designed to offend or otherwise upset specific people or groups of people likely to view those postings and having access that enables them to do so solely by virtue of the particular privacy settings at issue; also known as "counter-netstalking";
My ex-boyfriend's new girlfriend is totally and obviously netstalking me so I'm going to commit a little Passive Facebook Terrorism to put her in her place.
by Pandora0123 March 4, 2009
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