An acquaintance or friend from a previous phase of your life with whom you are "friends" on Facebook. Without Facebook they would have drifted entirely out of your mind-space except for very occasional "remember that guy?" reminisces. But because of Facebook, they continue leaving attenuated mental impressions on you.

This term isn't meant to include old friends who you don't see often but to whom you have a deep connection. Also, Facebook ghosts can become real friends and acquaintances again through a renewed connection or contact, often through Facebook itself.
Gavroche: Who is that guy with the crazy hair who keeps popping up on your newsfeed?

Fantine: I went to High school with that kid, but I haven't talked to him in years. He's just a Facebook ghost.
by Johnny Popular November 25, 2011
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quickly logging off or appearing offline on Facebook to avoid a certain person.
john: i think Jane has been Facebook ghosting, she seems to log off every time i log on
by bic boi dan July 25, 2011
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The act of reading through Facebook... but not actually commenting/posting/liking, thereby not leaving any trace of being there.
#1; Aric's never on Facebook anymore!
#2; Na man, he's always on! He just loves Facebook Ghosting.
by jessiemh August 9, 2010
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Somebody who always appears offline on Facebook, usually so nobody will bother them in chat.
I think that Bob is a Facebook ghost. He always posts stuff but is never online.
by The Anti-Facebook Ghost February 19, 2010
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Someone who goes on Facebook and comments on a picture/video but logs off immediately after. These people do this to give the impression that they are so cool and popular that they can only spare a few seconds of their busy day to comment on a mere Facebook picture/video.
Guy 1: Hey, Tony just made a comment on my picture, and it says he wrote it "a few seconds ago", but he's not on Facebook chat.

Guy 2: Wooooow, what a Facebook Ghost.
by palabra up March 6, 2010
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Someone who used to have a full Facebook account, but ended up deleting it while still using Facebook Messenger to keep in contact with their friends. Just like a Force Ghost no longer exists but can manifest and communicate- a Facebook Ghost can still chat and participate in group chats, but has no profile to be viewed.
Daniel is a Facebook Ghost and can't be invited to the concert through the Facebook Event page, so the host had to use Messenger to send him the details.

"Hey why can't I check your profile? I didn't get any notifications for your birthday."
"Oh I'm a Facebook Ghost, I deleted my account but I still use messenger to hang out in the group chat. "
by infernlmagician November 15, 2019
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Someone who haunts a persons facebook profile usually in an attempt for the person to notice their interest. see Facebook Stalking.

The ghost will generally check and re-check the haunted page numerous times through out the day in order to be the first to comment or like on any post.
My word Jenny, thats the 5th time John has liked one of my posts and commented on it. He litterally is a Facebook Ghost.
by Memphisx February 11, 2011
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