by flclimax1 February 06, 2008

by kohlmanfrack April 20, 2010

shortcut key for nearly all Windows Operating Systems to Close the active window or application.
Also used as an insulting tool by the 1337 or l33t people to have a bad/angry gamers, aka noob, to trick them to quit the game.
Also used as an insulting tool by the 1337 or l33t people to have a bad/angry gamers, aka noob, to trick them to quit the game.
friend: dude, how do I quit this?
me: hold 'Alt' and press the 'F4' key at the top of the keyboard.
also
l33t: to fix the lag, hold Alt and press F4
<random noobs log out>
l33t: sweet, less lag...works all the time.
me: hold 'Alt' and press the 'F4' key at the top of the keyboard.
also
l33t: to fix the lag, hold Alt and press F4
<random noobs log out>
l33t: sweet, less lag...works all the time.
by Edward Evil, CEO of Evil INC November 16, 2004

Used in online games to 'pwn'/scam 'nobbies' due to the fact that this command closes your current open window.
l337: To duplicate money/items drop them on the ground and press alt+f4
Nub: OK!
(nub leaves game)
l337: haha, j00 got pwnt
Nub: OK!
(nub leaves game)
l337: haha, j00 got pwnt
by JimE Ray January 24, 2005

by Arnold the governator October 20, 2003

Often used to discourage n00bs, this is often said while playing a game or talking in a chat room. Usually results in never seeing the n00b again.
by RyaN February 19, 2003

Newbie: "Do you guys know any cheats?"
Expert: "Yes, just press Alt + F4!"
*Newbie presses Alt + F4*
*Expert laughs*
Expert: "Yes, just press Alt + F4!"
*Newbie presses Alt + F4*
*Expert laughs*
by ALEXtheEMO August 21, 2009
