fbf 

Fit but fifteen!

"Man that girl is so hot!"
"Yeah, but you'd go to jail dude, she's FBF"

fbf by megapete April 30, 2009

FBF 

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.

FBF by mudcat September 12, 2010

fbf 

fake boyfrend

girl:do u wanna be my fbf
boy:yep
girl:ight

fbf by twinny1 October 12, 2017

FBF 

Future Boy Friend

Damn, he’s my FBF!

FBF by Jiggletwist78 February 26, 2018

fbf 

(future) (boyfriend)

boy:"do you see me as your fbf?"
(girl): yes i do

fbf by losernofriends May 19, 2018

FBF 

Fake boyfriend

Josh is Amy’s fbf

FBF by Pyt._.queen July 23, 2018

Fbf 

(F)ake (B)oy (F)riend

Friend: ugh that boy is ugly
Me: aye hop off that’s my fbf

Fbf by JAJAJAJJAAJ June 2, 2018