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

by missj1982 December 12, 2009

fi

If something is good or looks real good

oo that kool-aid was fi

by lalaw November 15, 2005

FI

Code for 69. F is the 6th letter and I is the 9th

Fifififififif

by My yee 2 February 13, 2021

fi.

A common abbreviation for fish

"Look in that pond, there are two fi.s (Pronounced F-I-Dots) They are orange!"

by Jenny Any Dots April 28, 2006

FI

An FI is an an abbreviation for Fucking Idiot. You see these driving on the roads every fucking day. You can also find them in the workplace, in stores, and health clubs, police departments, and yes hospitals too. Most of them are men, but some are women.

That FI cut me off!

by Non FI May 30, 2014

fi

1)Five

please see fo, fo mo info.

what's his phone number? fo-fo-fi-fo-fo-fi-fo (445-4454)

by futuretrucker January 24, 2005

fi.

the common abbreviation for fish

i have caught me a tasty fi.

by thursday April 30, 2006