Facebook taggroup addict
A Facebook taggroup addict is someone who joins every group just because they think it makes them look cool. They don't care if they get banned from Facebook. They just want to be part of everything, even if it's nonsense.
"I joined a group called 'People Who Think They're Cool' and now I have to live with that."
"I joined 200 groups just to prove I was the best taggroup addict."
"I joined a group called 'People Who Hate Mondays' and now I have to live with that."