Fn-Slide 

The act of pushing the Fn key on a keyboard with one hand, then running your other hand across the row with the function keys (F1, F2...). Whatever options are bound to those keys will all be triggered at once. This works best on laptops, as the function keys do things like lock the computer, change screen size, and alter wireless configuration. This often causes destruction to the user's computer, for hilarious effect.

Person 1: What's on your computer?
*leans in, fn-slides, flees*
Person 2: What the fuck! What did you do?
*computer attempts to resize the screen, turn on num lock, hibernate, lock workstation, and change contrast*

Fn-Slide by HighPriestMcKickass March 11, 2011

Fn 4 

if u have a lenovo thinkpad laptop hold {Fn} and {4} at the same time while playing a game and you will instantly win the game! and your computer will be 4K

1. Harry: oi, press {Fn 4} and you'll win instantly
Dangaz: okay.

2. Harry: hold Fn and 4 at the same time it will make your computer 4K

Dangaz: Okay.

Computer: off

Fn 4 by HarryGrass August 12, 2019

fn kid 

A young teenager who tends to panic in games when they are being shot at in war zone they tend to scream 'WHY CAN'T I BUILD' !

He/she is a FN kid

fn kid by FN kid guy March 17, 2021

fn kid 

A child/ man child who plays fortnite on the daily

He/she is a FN kid

fn kid by FN kid guy March 17, 2021

fn;dr 

Fox News; Didn't Read

John: "What did you think of this article?"
Mary: "FN;DR"

fn;dr by TheCelestrian February 5, 2015

FN FAL

Fusil Automatique Léger ("Light Automatic Rifle") or FAL is a self-loading, selective fire battle rifle produced by the Belgian armaments manufacturer Fabrique Nationale (FN).

The design of the FAL is Based off the Sturmgewehr 44.

The FN FAL is NOT an Assault rifle. It's considered a 'Battle Rifle'. The difference is that a battle rifle like the FAL fires a full -sized rifle round and assault rifles fire shorter intermediate cartridges. The difference is also seen in the effectiveness of the gun's range. While the FAL can fire at a mid to long range, an assault rifle like the AK-47 can fire short to mid range.

The FAL rifle is famous for it's use in the British Army, as well as many NATO countries. It's also seen in many video games Like MW2 and Black Ops as a semi automatic rifle (This is accurate because the FAL has selective fire).

The FAL has seen service since the 1950s and is still used today.

An FN FAL is the best with an ACOG scope in MW2, and in real life it kicks ass.

FN FAL by TrashCanSam August 27, 2011

fn butter 

The lubricant that builds up as a result of having sex with a woman. pussy juice

I worked up a good batch of fn butter while I was having sex with my ole lady.

fn butter by d edwards September 25, 2006