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Someone who is obsessed with Facebook (usually a girl) it is rare for them to be offline. Facebook-Whores usually have a Facebook app on their phone, so they can easily check newsfeed, create new status's, add pictures ect. They usally don't have anything to do besides look at random peoples pictures, info,wall ect.
Sarah: "Mary is such a Facebook-Whore!"
Emily: "I know! She is always looking at random peoples stuff.."
by pseudonymousne phyn August 01, 2011
Either a girl or guy who adds everyone under the sun so that it looks like they have a ton of friends, but in reality they just look stupid because they don't actually know any of them. This said person with a ton of "friends" often has no real friends and no one really likes them because they are fake. They also like to creep on these people they don't know. Guys are the worst because they will facebook chat, message, and comment on pictures of girls they don't even know...LOSERS. Some facebook whores will even post pictures of themselves that are slutty so they can get attention to feel better about themselves. They shoudl just rejoin myspace and quit being annoying to all the normal people who use facebook correctly.
Whore: "Omg I added that kid on facebook yesterday."
Person: "So don't you know him?"
Whore:"ummm, no...I just wanted to creep on him."
Person: "Wow, that's pretty lame..you're a facebook whore. In fact, I don't even really like you."
by getareallife April 16, 2011
a person who comments on EVERYTHING and lurks on every possible status, picture, album, etc.
by nicole carnevale May 01, 2011
someone who likes/comments on everything on facebook
god another notification from mike, hes a real facebook whore.
by volfan96 February 23, 2011
a facebook whore is just like a facebook slut but the major difference between the two , is a facebook whore HAS a boyfriend . so not only is she flirting with her boyfriend , but you wil always find a facebook whore flirting with every other guy too !
marissa - ohmygodd chris , your girlfriend is such a facebook whore .

chris - what are you talking about ?

marissa - she flirts with all the other guys when your offline .
by skinnybitch09 February 13, 2011
Some one who spends more than 18 hours a day on Facebook.
Friend 1: OMFG dude i need to check my Facebook.

Friend 2: Your on Facebook all day everyday!

Friend 1: Your point?

Friend 2: Your a Facebook Whore
by TonyDaTiger8 June 17, 2010
A female who post seemingly deep, philosophical comments that they searched for on Google. Also, any posts that make you want to stab the female poster's face, such as: Me and the gurls are so cooooll!! ;) or mirror and raised arm pictures.
Cynthia is a bitch, well, a Facebook Whore I guess whoreface
by aidsface45 June 20, 2012