when you friend someone on facebook whom you've recently met, i.e. a coworker or classmate, and all their friends decide to friend you, even if you have never met them/have no idea who they are.
John: I friended that new kid Chris from our Economics class on FB, and now all his friends from his old school are friending me.
Justin: Yeah, they're pulling the 'fbriends of fbriends' card.
Justin: Yeah, they're pulling the 'fbriends of fbriends' card.
by grlwholvd August 27, 2009