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One who prostitutes himself/herself on Facebook by using multiple methods to draw attention to themselves, such as frequent status changes, writing on several different walls, or participating in a ridiculous amount of Facebook activities in a day just to get their name in the newsfeed.
I got on Facebook today and I kept seeing Sally's name in my newsfeed...what a Facebook slut!
by natethegreat58 March 31, 2009
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A person who is addicted to facebook. This person always knows their friend count, and it usually includes many people that they dont even know. Every time a facebook slut is near a computer, he or she automatically logs in and looks around the site for half an hour.
Dennis is always talking about how many friends he has on Facebook. Every time he visits me, Dennis logs on to my computer to check his Facebook. Dennis is such a Facebook Slut!
by John 26 December 01, 2005
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We all know one, a girl who friends random guys and hooks up with them. This girl will also have somewhat revealing pictures that scream "LOOK AT ME!" dumb slut
Guy 1: yooo this girl wants to chill shes already sent me a nude pic!

Guy 2: Maaaan she is such a Facebook slut she inboxed me a pic of her in just panties the other fuckin day!
by Pimpmacdaddy69 January 18, 2010
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a girl or other who will add anyone on facebook but not know any one and gets gratification from her excessive catalogue of nobodies who also use facebook and may or may not have come into contact with the slut on one or more previous occasions - not necessarily classifying you as a friend.

Someone who has friends on facebook who doesn't socialize with them but merely teases you.

Fuck I hate facebook...
About 4.5 million people on facebook - for all those people who add me as friend and never talk to me - hug me - fuck me and think they are all that because they have a million fucking facebook fuckers on their friends list - you are a facebook slut
by Fresh_TJS August 22, 2009
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