a sort of language once used to evade authority, and of people finding out about hackers on search engines, it's a language originally consiting of only numbers and letters. now it's used by assholes who think they're so cool and wannabe's who spend toouch time studying megatokyo.
l337 15 4 n1c3 7h1n9 70 u53, 1n m0d3r4710n.
(leet is a nice thing to use in moderation.)
by ephemeral bliss March 06, 2004
17'5 4 (0mpu73r l4ngu4g3. 17 g375 4nn0'/1ng 4f73r 4 wh1l3. 700 b4d 1f u (4n'7 r34d 7h15.
if you can read l337, vote one.
by munkees rulez!!! November 22, 2003
A language invented on the internet which puts numbers and symbols in the place of letters.

_L337 guide_
A=4
B=B
C=( or c
D=|)
E=3
F=Ph
G=6
H=(-)
I=1
J=j
K=K
L=!
M=/\/\
N=/\/
O=Ø or 0
P=P
Q=Q
R=r
S=$ or 5
T=7 or +
U=()
V=\/
W=\/\/
X=xx
Y=¥
Z=Z

_Additional notes_
1.In L337,abbreviations are commonly used although they are not part of L337$p33k(These do not become symbols).
2.Any word ending in "ck" becomes "xxØr" in L337.
3.Certain words are also unique to L337 e.g.73(-)(the) and /\/\3(-)(my)
Sentence in L337:
\/\/(-)3r3 1$ 73(-) |)ØØr???

Examples of additional notes:
1.O.M.F.G. ZØ/\/\b13$!!!
2.73(-) $733/\/\ RØxxØrz.
3.73(-) dØØd Pwn3d /\/\3(-) Ph4(3.
by Jonjo December 15, 2004
Many people will argue that it started with the popular game Counter Strike, but X's def. is the most correct. According to "The Hacker Crackdown" by Bruce Sterling, it was an invented language used to confuse FBI and NSA sniffing programs during Operation Sundevil, when the government placed "wiretaps" on the Killer server to find hackers. Used extensively after the E911 document scandal and the theft of Korn 78 and other UNIX programs by AT&T. Google "Fry Guy", "Terminus", "Gail Thackery", "Acid Phreak" and "Phiber Optik" for more information. Discontinued among true hackers thanks to encryption engines and PGP keys.
641|_ +|-|4<|<3|2y 5|_|x0|25.
Gail Thackery sucks.
by Kyuketsuki June 25, 2003
There are two varieties of 73h l337. They are used based on the respect carried towards the person whom you are talking to.

l337 Light is used when you're talking to friends, acquaintances, and family because it is merely casual talk.

Hardcore l337 is when you are talking to a person of higher importance or someone you respect and/or admire greatly. Unlike l337 light, which is an alphanumeric language, hardcore l337 utilizes various other symbols.
l337 Light:

h3y d00d. h0wz j00r m4d g4m1ng 5k1llz?
hey dude. How are your great gaming skills?

Hardcore l337:

3><|_|53 |\/|3, 1'|\/| |_00|<1|\|g |=0|2 p|-||23c| 1|\| 7\/\/0-0-|=0|_||2.
Excuse me, I'm looking for Fred in 204.
by ViralStorm March 04, 2004
politeness is bieng able to speak l337 speak but having the sense and intelligence to talk like a normal person
by MiB March 03, 2003
L337, commonly thought of as simply a variation of the english language used in various 'old school' hacker rings, is also a following, similar to Buddhism, but only on the surface. To be L337 is to follow the principals of being a nerd, geek or other group of technologically enlightened. Certain circles will tell you that being L337 requires a person to be able to assemble a computer system while naked. Others believe L337 is something of a scene. A higher echelon of nerd hirearchy. Even further, l337 has also been documented as something of an unwritten religious movement and cult following incorporating computers and various types of media. The favored medium being online video games. Where as Kung-Fu is a martial art origionating from eastern religions, online games are the martial art extending from being L337 where followers can display their prowess. Playing video games online does not neccisarily make you L337.
1. I just got pwned by this guy online. Four versus one and this guy won 8 rounds before someone ever even got a hit on him. He was truely L337.

2. John is L337. He just modded out my case with cathodes and two new sticks of ram, making my rig faster AND sexier. He did it naked, too.
by E.Gregory September 14, 2005
Online Language. Because the standardised version has been lost or ignored or never invented, many dialects have appeared. While there is grammatical and spelling differences, it is almost identical to English to the point of being a mere substitution alphabet, and is rarely used in other languages.

-Note: The only "Common" themes are that 4=A, 6=G, 7=T, 5=S, 3=E and 0=O. The letter F does not exist in most L337. While l= "exists", you'll look like an idiot using it instead of pl-l (or any other letter for H).
l)0l\l'+ pl-lu(l< up 7l-l!5 l4l\l6l_l463. u53 !+ l235p0l\l54bl3.
by Trap Yoshi Access April 19, 2005

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