NFI 

Not Fucking Interested

Q "Do you want to help me do the house work?"

A "I'm NFI on house work bitch!"

NFI by Smoon March 3, 2004

Nfi 

No fucking idea

Why is this even abbreviated? Nfi....

Nfi by MasterIvey September 30, 2016

NFI 

No Fucking Interest. When someone tells you a spot of information and you really couldnt give a crap.

Guy1: Holy shit man i just saw your ex with some douche in a bar!

Guy2: NFI dude, NFI.

NFI by SpartanTooTall February 19, 2009

NFI 

Although there are already meanings for the acronym, perhaps a more feasible definition: (Not Fixing It)

Used by those who know that texts aren't a fucking college application essay so it should not be taken as such with silly grammar errors.

Cara: are you ducking kidding me

Cim: wut
Cara: nfi

NFI by cimboss July 24, 2014

NFI 

an acronym of "not flipping invited"

im having a party in there wanna come?

maybe

well you cant

why not?

you're NFI

nfi?

not flipping invited!

NFI by egg holder September 6, 2021

nfi 

also short for National Fatherhood Initiative, which is somewhat ironic.

nfi by tin ass September 10, 2003

NFI 

A polite way os saying:

No f**king interest.

ie. you have interest in the subject, the idea or person

NFI
I've NFI'd her or I've just been NFI'd.
"Do you fancy going to watch Chelsea on the weekend?","NFI mate"

NFI by Mister.T February 4, 2010