FSM

Stands for Film Soul Mate. The best person in the world who you can make films with, you're practically telepathic and always know what the other one is thinking. You always work great together!

Person 1. Lelinh is my FSM
Person 2. Wow, thats amazing! The 2 best possible things in 1!

by ThatAwesomeFilmmaker September 14, 2012

FSM

FANTASTIC SLOW MASTURBATION:
WHEN YOU MASTURBATE SLOWLY AND IT HAS A FANTASTIC ENDING

I HAD THE BEST FSM LAST NIGHT!

by SILVER HELMET RETARD May 17, 2009

FSM

Fat Stomach Man: a man with a fat stomach.

Look at that FSM eating a huge omelette!

by SarahDup January 8, 2009

Fsms thick

Fsms thick is when your jeans don't have air in them there for you are thick by fsms standards.

She's not thick but she's fsms thick

by Xela Enivoe September 29, 2017

FSM

Fat Smelly Man or Fat Stinky Man

I went out on a blind date with a FSM! Ick!

by jbonz April 30, 2007

fsm

"For Sure Motherfucker"

Me: Yo wanna go out?
Bro: Fsm!

by hhoes August 23, 2018

FSM

The Flying Spaghetti Monster: a god worshiped by one one and only true religion: pastafarianism
Legend goes one day he got drunk, and accidentally created the universe!

The FSM is the only true god.

by SESgaming November 8, 2023