FIS 

Means to Fart In Self. When you're in a situation, like with a new boytoy (or fish) and you have to fart so bad that it goes up into your stomach making a loud rumbling, grumbling, farting sound. To which you say "hmmm I must be hungry" in a sad attempt to cover up.

Claire - Oh man, I was at Rusty's this morning, and my gas was so bad that I was Fissing like crazy!

Ann - Dude you should have just broken the ice and dutch ovened him

FIS by missj1982 December 12, 2009

Fis 

when a person has to fart and pee at the same time.

Holy Shit, i hav yo Fis so dam bad.

Fis by ASs..Holee December 25, 2004

Fis 

Fis - the slang for when seeing someone hot or with a nice body

Aqsa's looking fis today !

Fis by anonymous1314 June 22, 2010

FIS 

Factually Incorrect Statement

Your mom: birds are so peaceful

You: FIS
birds are not peaceful they are drones flying around spying on us for they government

FIS by Sub to BIGFAIL April 17, 2020

FIS 

Short for fuckers in school

FIS (fuckers in school) telling me, always in the barber shop
"Chief Keef ain't 'bout this, Chief Keef ain't 'bout that"
My boy a BD on fucking Lamron and them
He, he, they say that nigga don't be putting in no work
Shut the fuck up
Y'all niggas ain't know shit
All y'all motherfuckers talkin' about
"Chief Keef ain't no hitter
Chief Keef ain't this
Chief Keef a fake"
Shut the fuck up
Y'all don't live with that nigga
Y'all know that nigga got caught with a ratchet
Shootin' at the police and shit
Nigga been on probation since fuckin' I don't know when
Motherfucker, stop fuckin' playin' him like that
Them niggas savages out there
If I catch another motherfucker talking sweet about Chief Keef
I'm fucking beatin' they ass
I'm not fucking playin' no more
Y'all know them niggas roll with Lil Reese and them

FIS by Traphouse_fish September 20, 2020

fis 

word used by people from targu mures for marry jane

hai coaie sa fumam fis

fis by xxfis October 13, 2023

Fis de pyt 

Something only gay niggas say to attract staight niggas

He: fis de pyt
Me: what's fis de pyt ?
He: fis de pyt my dick nigga

Fis de pyt by 360sexboy69 August 3, 2018