fss

IM acronym for Fucking Super Sweet

Steve: I got the job!
Smith: FSS!

FSS

Flinders Street Station (in Melbourne, Australia)

The three letter code for Flinders Street Station is FSS.

FSS

For shit's sake. Just for the hell of it. Just because.

Yo, I gave that bitch extra money FSS.

FSS

Fosho Shawty

You: Yo we goin to da movies tonite?

Friend: fss

FSS

Fat smelly shit

Dude 1: yo! did you just do a FSS?
Dude 2: Nah mate
Dude 1: I can see it poking out the bowl, you dirty wanker!

Can also be used as an insult

Dude 1: Leave me alone, you FSS!
Dude 2: calm down man, i was just joking.

FSS

Fap, shower, sleep

man1: SFS!
man2: isnt FSS better?

Fss

For shit sho’

Im coming tonight fss !