FBF

Future Boy friend

When you and another person are dating but technically not BF and GF yet. It is going to happen, just not rn

Max is my FBF.

by ❤️sweety❤️ April 3, 2020

FBF

Flat belly fucking

I need a trainer for FBF

by OkieBlueEye May 26, 2020

FBB

fat booty bitches. this name can only be used to describe the hottest girls with the biggest butts.

amanda, jenna, grace, katie, and vivian are FBBs. I wish I could be as thicc as them.

by wny2020 June 15, 2020

FBI

FBI as in the meaning of famous burglars ice cream (Shop)

I went to the FBI to get some ice cream

by ImSoFreakingDuMb June 24, 2020

FBFA

A Middle school frat usually made up of girls who give themselves names that have the same first letter as their actual name. Normally they dress up in "frat outfits".

Boy: yo, you see those girls over there.
Girl: yeah
Boy: they are the FBFA

by takeabathwithatoster July 8, 2020

FBM

Fat bitches matter

Him: yo bro fat bitches makes me sick
Me: chill bro fbm

by JayGotBandz July 9, 2020

FBS

FBS is a shortened way of saying fat bit*h syndrome

Oh my god she definitely has FBS look at her

by Ethan Gillespie July 19, 2020