(n.) a fake Facebook account that you make for friends who either deleted theirs or refuse to get one.
Guy 1: "This is fuckin' perfect! Whoever made a falsebook for Brian, mad props! The only thing is you have to put TWILIGHT as his favorite movie, TOOL as his favorite band, and list his sexual preference as interested in MEN!!! He's gonna be so pissed when he finds out about this falsebook! Fuck yeah!!! Wooooo!!!"