When someone does something on Facebook just to make a point, or have everyone else see it. Can be done by a status, or joining of a group. Usually not a direct comment or wallpost.
Facebook news feed: Brain just became a fan of "Harvard Business School Class of 2014"
Carlos: Man, Brain is such an asshole, he just wants everyone to see that and rub it in their face. He's just conspicuous facebooking like always.
When someone new as joined facebook, and he/she does not have many friends, wallposts or photos. In most cases, this is a relatively short period of time, before the 'facebookling' grows out of control into a Self-Mutating-Facebook-Monstrosity.