1 definition by mudcat
Fake Best Friend: some one who you don't really like and they don't really like you, but for some reason you both pretend to be friends; usually, to use each other for something!
Why were you hanging out with so-in-so today?
Oh! She's my FBF! We are the only two girls in that class, so we pretend to be friends for an hour.
Oh! She's my FBF! We are the only two girls in that class, so we pretend to be friends for an hour.
by mudcat September 12, 2010