FSAL

Fuck that Shit in the Ass without Lube

"We are going to bowling tonight"

"FSAL"

by fatjim April 13, 2010

FSE

Finest Security Ever

They have the Finest Security Ever. We have the FSE!

by GlitchCool0 March 20, 2018

FSU

Remember the movie Step Brothers? Possibly the funniest movie ever created. In the movie they said "lets fuck shit up." FSU is an easier acromyn for the term "fuck shit up." Use this term to say your about to party, or just do anything awesome or fun.

We're about to FSU tonight.

Let's FSU at this party.

by ttimenikka June 17, 2010

FSM

Fat Stomach Man: a man with a fat stomach.

Look at that FSM eating a huge omelette!

by SarahDup January 8, 2009

fsuk

It means fuck in teh language of teh l33t Thais lololololololol

"What? Olga Flow and over 2000 hp?! FSUK THIS!"

by RandomThai555 November 11, 2002

fsb

Fruit Salad Bunch, a West Auckland, New Zealand crew hell bent on gaining fame and notoriety through high - risk graffiti.
The crew consists of:
PAWNOS
LUCKSTA
NAZZ
BLENDR
and many others

"Did you see that new risky as FSB hit g"

"Ye g, those cunts are eatarse oww"

by pawnosFSB November 7, 2008

FSI

Acronym for Fucking Strong Information. Used after particularly effective emails or witty retorts.

Person 1: Last night I ate 13 onions and called out a Poodle.
Person 2: Yeah but you're gay
Person 3: FSI !!!111!

by Johnny Fingerbang November 27, 2007