It is really not existed in a dictionary(for me the word "Jejemon" don't exist). The UrbanDictionary.com is a dictionary that accepts any word and information that any users wanted to, and accept it, by voting users then review and accept by the editors, that some of the irritated user's, post the word "Jejemon" and some of the true and false definition of it were posted on the UrbanDictionary.com and became a phenomenon in the Philippines.
(Jejemon) The "Hehe" laugh mistyped to ("Jeje") or pronounced "J" in Spanish, ("-mon") or monster adopted from an Anime cartoon Pokemon or Digimon.
"Jejemon" is a word/letter improviser some were originated on "Creative misspellings and ASCII-art-derived words"or "Leet Speak" and some always have an ending trademark of "jejeje", that some user couldn't understand the word/letter, and so annoying that they called it "Jejemon".
Example from sentence above:
jej3mOn |s a w0rd/1e7t3r imprOviser sOm3 w3re ori6|na73d On cre47|v3 m|55pe11|n6s 4nd @sc||-4r7-der|ved wordsor 1e37 spe4k and som3 @1w4y5 h4v3 4n 3nd|n6 7radem@rk 0f j3j3je, th@t some |_|ser c0|_|ldn't und3r5tand 73h word/le773r, 4nd s0 @nn0y!n6 th@7 7h3y c@l13d |t j3jemOn.
Some false meaning of "Jejemon".
1. "Jejemon" is only for Low-Class People.
2. "Jejemon" is Low in IQ.
1. Anyone can become "Jejemon", just by using these improvise word / letter.
2. "Jejemon" is not low in IQ, in fact, they're using their mind just how to scramble that word / letter in fast pace, but not recommended (It can affect your writing skills abnormally).
Origins of "Jejemon"
It is first originated on the online gaming world, chat rooms, social networking sites, and text on mobile phones, who are obsessed to use "Creative misspellings and ASCII-art-derived words"or "Leet Speak", others just getting on hype, as they include it to their messages, and some always have an end trademark of "jejeje", just to impress the readers, that they too can use the hype word / letter(which for me, it is not hype), very unreadable that the readers irritated to their messages, as well annoyed that they called and tease them(which is not true), low in IQ, how they do fashion, how the way they live and look.
What is "Leet Speak"?
Leet, also known as eleet or leetspeak, is an alternative alphabet for the English language that is used primarily on the Internet. It uses various combinations of ASCII characters to replace Latinate letters. For example, leet spellings of the word leet include 1337 and l33t; eleet may be spelled 31337 or 3l33t.
The term leet is derived from the word elite. The leet alphabet is a specialized form of symbolic writing. Leet may also be considered a substitution cipher, although many dialects or linguistic varieties exist in different online communities.
The term leet is also used as an adjective to describe formidable prowess or accomplishment, especially in the fields of online gaming and in its original usage, computer hacking.1
History of "Leet"
Leet originated within bulletin board systems in the 1980s, were having "elite" status on a BBS allowed a user access to file folders, games, and special chat rooms. One theory is that it was developed to defeat text filters created by BBS or Internet Relay Chat system operators for message boards to discourage the discussion of forbidden topics, like cracking and hacking. Creative misspellings and ASCII-art-derived words were also a way to attempt to indicate one was knowledgeable about the culture of computer users. Once the reserve of hackers, crackers, and script kiddies, leet has since entered the mainstream. It is now also used to mock newbies, or newcomers, on web sites, or in gaming communities. Some consider emoticons and ASCII art, like smiley faces, to be leet, while others maintain that leet consists of only symbolic word encryption. More obscure forms of leet, involving the use of symbol combinations and almost no letters or numbers, continue to be used for its original purpose of encrypted communication. It is also sometimes used as a script language.1
Some user's uses "Leet Speak" Translator
Brenz.net FalseBlue.com AlbinoBlackSheep.com HelpingTeens.org
Mixing "Leet Speak"
After using this "Leet Speak" translator some user improvised the converted word/letter.
Ex: ex@MPl3 - eXHh@MPhl3Zz
"Jejemon" usually added these letters "H", "Z", "X", "K", "W" and some "Q" just to add/change consonant sounds just to giving it a twist, but sometimes unreadable.
Most user usually use the moderate one that is easy to use.
1. ref: http://en.wikipedia.org/wiki/Leet