Top definition
A high school or college student that spends an exceptional amount of time posting and browsing on Facebook; usually spending more than a half-hour a day on Facebook.

I could tell a guy on my floor was a facebooker when he was wasting hours of his time a day posting on Facebook.
by Bayard Lewis June 25, 2006
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2
The person who uses Facebook.
A: Are you a Facebooker?
B: Yes I am.
A: How much time do you spend on Facebook daily?
B: Well, around three hours.
by Rajeeb2014 March 28, 2014
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3
origin: portmanteau of facebook and hooker. circa 2006
1. a person who friend-request strangers and use wallposts as a way to meet new people
2. a person who spends obscene amounts of time on facebook, waiting for a new message/wall post and replies to messages immediately hoping the recipient hasn't logged off yet
3. a person who frequently changes their facebook status so that they will appear on their friend's home screen
4. a person who will make pointless posts on their friends' walls to elicit more posts on their own walls in order to appear more popular
5. a person who feels depressed when he/she doesn't receive a facebook notification for an hour.
Steve- "This girl looks really popular. She gets wall posts every 10 minutes."
Joe- "No, she's just a facebooker. She has never met half of those people, and she is initiating every wall-to-wall conversation."
by RuoJie July 10, 2008
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4
1. Anyone who uses facebook.com.

2. facebook+hooker Someone who uses facebook to find sex partners
1. Wow. Nik has really been using his computer a lot lately. He must have become a facebooker like the millions around the world.

2. Mike- "Jannette really needs help. She had sex with some random dude last night."
James- "Yeah, she's a facebooker."
by Maudlin La An May 04, 2010
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5
one who is obsessed with being on facebook. spends so much time on facebook they know eveyone's status and their conversations with others.
michael webb always knows when I update my status on facebook. he is such a facebooker.
by captain dorsalfin May 13, 2009
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6
Cool person who realizes MySpace sucks and just wants web presence to keep in touch with friends.
MySpace is ghey, so I'm a facebooker now.
by Scribbly1 July 18, 2008
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7
ONE WHO SPENDS OVER HALF OF THEIR DAY ON FACEBOOK INSTEAD OF DOING THEIR FUCKING JOB.
MY PURCHASING AGENT IS A FACEBOOKER.
by RICKOLO October 14, 2011
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