A noun: describing a person who uses Facebook like they are on Twitter and ends up spamming your news feed with their statuses.
10:51 AM "Driving to work!"
10:57 AM "Arrived at work!"
10:59 AM "Working! :("
1 Comment: "STOP BEING A FACEBOOK TWEETER! You're clogging my news feed with your inane statuses! Nobody likes you."