Internet slang, Internet language, Netspeak, Chatspeak, Leetspeak, Chat Room Shorthand, Computer Language, 1337 (or leet), Tech-Talk (as used by some chatroom users) or Nu English is slang that Internet users have coined and popularized. Such terms typically originated with the purpose of saving keystrokes, and many people use the same abbreviations in text messages and instant messaging. Often, letters are replaced with numbers. For example, "Monkey" could be written as "m0nk3y". This form of internet slang is known as leet. Acronyms, keyboard symbols, and shortened words are often methods of abbreviation in Internet slang. Common examples of this are "LOL" (laughing out loud) "OMG" (oh my god) and "WTF" (What the ****?) More can be found on Wiktionary.
There are also internet words in the phonetical style, such as "dis" (this), "luv" (love), "dat" (that), etc. Some internet slang in the phonetical style has "z" instead of "s". The terms often appear in lower case, with capitals reserved for emphasis; for example, the pronoun "I" often appears simply as "i", "are" simply as "r", or "you" simply as "u". A system also exists that uses purposely misspelled words and incorrect grammar and punctuation. This is usually called "Kitteh" or "LOLcat" because it originated as the captions for images of kittens.