Someone who is extremely popular on Facebook.
Someone who gets many posts by people telling them how funny, liked and loved they are on their own wall.
Every post gets a lot of clicks on the "LIKE" button
Someone who gets many positive comments on all of their posts.
He is missed when he's offline for even 1 day. His friends let him know it by posting many, many positive posts on his wall daily.
Typically John Q Citizen has over 1,000 friends. People thank him for his Facebook friendship. He is smart, funny, witty, kind and loved. The same goes for the female version, Jane Q Citizen.
If you have Facebooklarity you'll know it. If you don't know it, you don't have it.