fn 

fn is a abbreviated form of fanny - which is considered as the bottom in the USA and the front bottom on ladies in the U of K

'That skirt is so short I can almost see your fn'
'Put your fn away for god's sake woman'
'Listen mate I don't want to compare fns'

fn by Bo'diddly November 10, 2003

fn 

Just to shorten Fuck Nigga

Mike:"Tell that fn to calm the down."
Nick:"Oh ard."

fn by Yeet kid May 25, 2018

fn 

Acronym for Fortnite, apparently.

Yo, I’ll call you back I’m in the middle of playing fn with my n!gga

fn by babyigotme June 13, 2018

Fn 

1. For now
2. Friday Night
3.Fashion Nova

1.”For my free trial I only have to pay 3.99 fn “
2. Dude-When do you wanna go on a date?

Girl-How about... FN?

Dude-Bet
3.Friend- Wyd poo

Friend 2- Looking for us some matching outfits on FN

Fn by PeriodtPoo June 5, 2019

FN 

A short form for lazy mutha fucka or Fat Nick

Fat Nick is a sticky greasy grimy slippery sloth and should not be trusted when he says "ill pay you back" or "man i dont have it" pictures of an FN can be found on the walls and the ceiling of Da Basement.

Yo its the FN the mutha fuckin' fatty's in yo' house dont let him sit down there'll be a dent in yo' couch

FN by Tremblah December 9, 2008

FN 

Fairy 'nough.

<Subeta> KD + Dip Apprent + 7x DC = I win!
> Yeah, FN.

FN by the terminal sloth March 25, 2003

FN 

FN=Fuck Niggers

Hey, you support FN?
Oh, you mean Fuck Niggers?

FN by faggotnibber January 25, 2019