facebook worm 

Some one who spends way too much time logged on to facebook.com

I never see her anymore, I don't think she leaves her house. She's become a complete facebook worm.

facebook worm by JimTalbot April 17, 2009

Facebookworm 

A person who pesters you on Feacebook, constantly sending irrelevancies or begging for a connection.

This is the 5th inconsequential message I've received from John today; he's become a facebookworm.

After I rejected Karen's connection request on Facebook, she sent connection requests through 3 other networking sites. She just doesn't get it. What a Facebookworm.

Facebookworm by unconnected March 13, 2009

Facebookworthy 

An event, photo, rumor, or other happening that is worthy of posting on your Facebook profile for everyone to see.

"I just partied, drank scotch & sang karaoke all night with guys and their Korean servant girl harem in their mob lair without paying a single yen. It was definitely a Facebookworthy evening."

Facebookworthy by Travitron December 16, 2008

Facebookworm 

A person who clearly spends too much time on Facebook, to the detriment of alternate social activities, or even conversation with the person or group they are currently with.

A Facebookworm could be a person in a bar or cafe , staring intently at a smartphone and "liking"away as as real life evolves around them.

Facebookworm by Sansebastian June 19, 2013