2) A person who likes a particular topic, or posts a link, then comments on it for the sole purpose of being a negative prick/or bitch. A ego-centric individual that is driven by sadistic tendencies, and mostly thinks of ones own self, without regarding how comments may effect others.
3) Person who lacks depth, empathy, and character.
Closely related to Facebook Narcissism
John: "Atheist's are full of Shit!"
Larry: "OK John, why are we full of Shit?"
Sue: " How about that Republican debate last night, what a bunch of losers!"
Jane: "@Sue, so Democrats are all winners?"