Cheating or hacking programs in online multiplayer games such as Counter-Strike. The cheater often has an aimbot, can see players through walls, uses neon colored player models, and has decreased recoil to name a few advantages.
That guy just got three headshots in a row! He must be using h4x!
by l337 h4x0r January 27, 2004
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A term commonly used towards someone who is playing amazing, or doing things which may look like they are cheating, when in fact, in most cases, they are not. Also used a complement to good players labelling their skills as good enough to be considered cheating.
Oh shit you h4x dude.
You are teh h4x.
OMG H4X!!!
by Brad Lundahl November 24, 2002
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A word translated into 1337speak.

Most commonly used as a congratulation to someone whom is doing extremely well in a game, usually by the opposition.
<n00b> OMG J00 R TEH H4X
<whee> Thanks.
by trust April 25, 2004
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So much ownage you must cheat.
"wtf he h4x"
by karsten July 9, 2003
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Gaining access to another computer through an exploit. Can also be used in a sarcastic or funny way.
"I just h4x'd this nix boxen"
by DarkSun August 8, 2006
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pwning n00bzorz to teh m4x!
h4x. gg kthx

or

ur mzn h4x dont work.
by Roooober August 22, 2003
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