A person who is constantly logged on to Facebookand simply presses the refresh button over and over again while on their feed page to see if any of their friends, who are too afraid to use myspace, have sent them anything.
"Everytime I log onto facebook Brett is always on. He must be a refacer."
one who does ridiculously annoying things to his/her friends. Most commonly used when more than 2 people are playing a video game such as Halo and one person incessantly kills his own teammates to be funny.
1: "Who was that guy that kept killing us on xbox live last night?"