FN 

F*** N****

I’m gonna touch you fn

FN by anonymous rat bastard June 10, 2024

fn 

shorthand abbreviation for "fatnub" or "fatnoob"

never play this game again, fn.

fn by CylindricalNefr January 3, 2025

FN 

short hand of Freak of Nature

You are acting quite like the FN right now.

FN by cropssmyninaj May 5, 2025

fn 

abbreviation for 'fuck no'

Person A: fn

fn by g8363 May 19, 2025

fn 

fn is an abbreviation for 'fuck no'

Person A: Are you a pooron
Person B: fn :D

fn by g8363 May 19, 2025

FN 

Meaning “fricking nugget” as in, you’re a goof or idiot.

Alex is such a fn, he forgot his meds.

FN by ynmakinithapoen August 22, 2025

fn

the button on your keyboard that seperates in-window keybinds from device keybinds

Wow! If it weren't for the fn key, I wouldn't have been able to up my volume without open the menu!

fn by WelcomeToYourLife November 29, 2025