1 definition by Denis Potvin
One who responds to posts, comments, etc n ridiculously short amounts of time; One who responds to every thread that appears.
Sarah: I hate driving WTF!? 1 min ago
Gary: me too! 1 min ago
Sarah: gary, what are you, some kind off facebook ninja?
Gary: me too! 1 min ago
Sarah: gary, what are you, some kind off facebook ninja?
by Denis Potvin October 30, 2009