1337 is one of the many internet customs and words developed over time. 1337 has been with hackers, gamers, pwngrammers for ages. God knows who coined it but kudos to them
U r so not 1333333337 I pwnt U lllollool LOLtz I pwn n0obSteer
A way of typing similar to AOL speak, except this is used by 11 to 16 year old nerds/gamers/losers/otakus/super-losers to make themselves feel cooler because they have jokes and a "code" that the majority of people will struggle to understand. Thus making the nerds feel superior, when infact they still have greasy hair, few practical skills, glasses, and they are still generally disliked. These "1337" nerds will also be more likely to recite internet jokes aloud.
Boy1 - I am 1337, you are a girl, you must bow down to my superior gaming skills.
Boy1 - My phallus shall own you. My phallus is made of win and god.
Girl - Eew, get away perv.
Boy2 - What the shit?
Boy1 - You guys are newbs.
Boy2 - Fucking loser.
Boy1 - { exeunt all but Boy1 } He is less intelligent than I. I am going to talk about this event on my blog, my reader will agree. I am soo cool to have a female reader.
1337 is highly over used in todays internet gaming community. but it used to be use by elite hackers to esape control from the man. now it is use but stupid kids who sit in there basement and have no out side life, which is good because if they used it in sn outside life they would be locked in a basement for the rest of there life.