fi.

the common abbreviation for fish

i have caught me a tasty fi.

by thursday April 16, 2006

Fi-Fi

fire fighters; fire engine; sound of fire alarm

Dude, what's that siren? I smell smoke... It's the FI-FI!

by fifithomas February 14, 2015

fi-fi bag

A sock or towel used in jacking off to eliminate hand to penis contact. Normally found in bunks in jail cells, boy scout camps, and tour bus bunks. They should always be handled with gloves or a stick due to the nature of the goo they normally contain.

Why are there socks in all the bunks? Don't touch them, they're fi-fi bags!

by twistednick December 28, 2010

Fis

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

Holy Shit, i hav yo Fis so dam bad.

by ASs..Holee December 26, 2005

FI

First Impression

Basic white girl #1: Comment below for an FI!
Basic white girl #2: Comment!!!!
Basic white girl #1: Omg you have always been my favorite person forever!
Basic white girl #2: Awwww

by TheLetterE July 31, 2017

FI

a acronym for fire, one that is the finest of the finest.

Damn, that gul there is the Fi.

by Pimptress March 12, 2003

fi

Adjective, used to describe something of good quality or someone who is good in a particular area; derived from the word fire

Kaley: did you see that girl the other day on the softball team?
Justine: you mean when she hit that grand slam?
Kaley: yea she is straight fi

by celeste25 March 15, 2008