The word was used originally in starcraft. Although not many know this word, it is there. If one says alt+f4 to another it means get the fuck out. alt+f4 is pressed to instantly exit a program and so it came to be that if one says alt+f4 to someone else, it means they should leave. People will trick n00bs into pressing alt+f4 if they seem to bother one.
1. Ok i think you should alt+f4.
2. Press alt+f4 its a cheat.
by RoarMan March 20, 2006
Top Definition
Keyboard command to exit out whatever it is you are in.
Press Alt + F4 right now to close out Urban Dictionary.
by flclimax1 February 06, 2008
1. These keys will exit a program instead of using the exit icons.
2. A fun way to get rid of noobs in multiplayer games and chat rooms.
Halo guy 1: "Hey how do you change grenades?"
Halo guy 2: "ALt+F4."
Halo guy 1: diconnected
Halo guy 2: "HAHA stupid noob!"
Halo guy 1: re-enter: "Hey that's not funny dickhead!"
Halo guy 2: "STFU stupid Noob!"
by Punkhead May 25, 2005
Life saver, Used in computer classes to close windows to save you from being caught doing you aren't supposed to
Guy 1: "Psst! the teacher's coming this way!"
Guy 2: "Alt+F4 Alt+F4!!!!!!
by ThePhasePhantom November 22, 2012
The mean way to make a newbie quit on windows computers
Newbie: how do i ____?
Dick: Alt+F4
Newbie *quits and is discouraged to play and leaves which slowly makes the community only pros making new people steer away and eventually killing the game as a marketable object*
by Sleepy_Nerd June 12, 2015
An unoriginal old prank that nobody falls for anymore, (except the 10 years olds)
10 Year old has joined the game.
10 Year old: Hey how do you run fast?
xxmLGpro69x: Press and hold ALT + F4
10 Year old has left the game.
by this is really long name February 05, 2016
Most useful keyboard shortcut of your computer, has many features depending on the program you use or site you're in:

Urban Dictionary - Auto-like all definitions in your current page
Pornhub - Slow motion mode
CS:GO - Free golden karambit.
Facebook - Find hottest chicks in your city
Fox News - Automatic DDOS attack
Youtube - Find all "removed" videos, including but not limited to: anal midget porn, ISIS decapitation videos, George W. Bush confession of carrying out 9/11 and sexual intercourse between Kim Kardashian and a Hippopotamus
FBI: We can't find "deleted" Hillary Clinton emails!
Journalist: Hell you can, Alt+F4 !
by 32121 July 28, 2016
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.