The technique of writing text without using the proper letters. The technique is mainly used by people who are to write forbidden words, and who thereby can avoid automatical language censors. There are many types of leet speak, from rather obvious replacements to intricate cyphers.
See also leet
7l-ll$ l$ @ I)lc7l()/\//-\ry
This is a dictionary
1 |2 |\/|0|23 l337 74|\| j00 4ll |\|00|35!111
"I r more leet tan joo all noobs!"