fiss 

gay oriented meaning.

a gay man says somethings fishy's going on......sounding like something "fissy's" going on

fiss by TINKY WINKIE December 17, 2003

Fiss 

A combination of “fat” and “piss”.

Describing really needing to piss

“Im craving a fiss” or “go fiss girl”

Fiss by Jessiesdreamhouse May 16, 2025

Fiss-to 

It means to do something

Hold on I'm Fiss-to do it.

Fiss-to by Money Maj January 21, 2024

big fiss

Replace big fiss with the word dick

I just thought u saw a big Fiss and u were scared.

big fiss by Kody is a faggot April 20, 2019

Fission Mailed

Originated from Metal Gear Solid 2 Sons Of Liberty. What is different is that they changed the first two letters in order to confuse the player. Sometimes used on messageboards to show defeat or total pwnage.

"That sign said Mission Failed so I turned the power off."

"Dude, it was Fission Mailed, they just tried to confuse you, now you gotta start all over again cause you didn't save. Pwned!

Fission Mailed by SCANK April 18, 2005

fisse 

Vagina or Pussy in Danish.

English: Her Fisse is so wet
Danish: hendes fisse er så våd

fisse by lolImadick October 24, 2017

Ass Fissure 

When you have such a large dry shit that it literally tears your ass so that there is blood on the TP when you wipe

I ate the whole bucket of popcorn at the movie theater - if I don't have a an ass fissure it will be a miracle.

Ass Fissure by Merkin March 6, 2007