FSB 

eleanor stop looking on urban dictionary for FSB. it's not here. it never will be. love you.

eleanor: will you tell us what FSB is?
emily: perhaps
erin: perrrhapps

FSB by carppol2k8 March 18, 2008

fsb 

A nickname, primarily of 1337 h4x0r people.

Sup fsb.
omg.. you are turning into an 'fsb'!

fsb by Dagreat1 November 12, 2003

FSB 

Fuck, suck, bust

Damn last night was great, first i fucked my girl, then she sucked my dick and then i nutted. I definitely love the FSB method

FSB by EAM94 February 26, 2011

FSB 

Fuck-Shit-Bitch = FSB

Inspired by the clasic tune known as Mo bamba by Sheck Wes

It's used as a curse word replacing the usual "fuck", "shit" or "bitch"

Instead of saying one of those you say fuck shit bitch and then continue rapping the song.

If you were to use it in a text convo just write fsb.

It also keeps up the good mood after an inconvenience happens.

*stubs toe* "Ah fuck, shit, bitch ... YOUNG SHECK WES AND IM GETTING REALLY RICH"
Dude that girl makes me wanna say fsb..

FSB by FahKnee June 1, 2019

FSB 

short for Flight suit boners, and occur when you are a pilot and you see some fine ass female while wearing your flight suit and you start to grow a full on rager, but instead of hiding it, you MUST flaunt it.

Hey Dan, is that an FSB i see?
You know it.

FSB by jamie webber December 12, 2010

FSB 

Faster, Stronger, Better.

Steriods.

I need to get FSB for the Olympics

FSB by Evil_monkey_griffin December 28, 2005

FSB 

1.

a narcissist pervert your friends with for some reason

2. a good friend who's always willing to listen to your problems and is generally a good person

3. fucking crazy

damn, what an fsb, that bitch is so narcissistic

omg fsb made me feel so much better about my problems, they are such a good friend <3

FSB by ichigochan75 January 10, 2021