Stands for Eleet. This is the original form of pointing out one's greatness from any standpoint, beit athletic skills, academics, or even hacking or cracking processes.
It was coined by a cdc group when they listened on a port :31337 and pointed out the Eleet-31337 - ness of their exploits.
Dude you're true 31337.

1337 is a later variant used mostly by trendy kids who like to taunt others in online video game play.
by LarstaiT February 21, 2005
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to be elite. one who has skills.
i am one elite hacker.
i am one 31337 hacker.
hes elite.
hes 31337.
by mike July 7, 2003
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Hacker lingo for "elite." Numerical form of ELEET.
I went to this 31337 gathering last night!
by Witch Doctor September 11, 2002
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31337 is the default port used by the Back Orifice trojan/Remote Admin Tool.
yeah d00d i hax0red him and set BO2k to listen on port 31337 default!
by Goatse Labs June 16, 2003
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The prime number between 31333 and 31357.
i m 31337 bu7 u r 0n133 31333
by globulator2000 March 24, 2003
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Spelling of "elite" primarily favoured by the alphabetically impaired.
i r hax0r ur b0x0r 4 i r 31337, fag0t!!!
by hissface September 17, 2003
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1. The most highly prized and regarded ICQ number
<DaaBoll> What's your ICQ # guy?
<DooBall> 31337 mothafucka! ... 26855456 =(
by David Yoo March 29, 2003
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