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