The high increase in popularity of the infamous LOL (laughing out loud) was not enough for the teenage, trying to be cool, defying mom and dad, often emo generation. They had to come up with something even cooler and that's how LOLZ was born. Some say that Z stands for S, therefore it's the plural version of LOL. But let's analyze that thought process a bit. The plural of LOL would be translated as "laughing out loudS" or "laughingS out loud" which, for the few of us who are at least trying to be grammatically correct makes as much sense as "z" being used as a replacement for "s".
In this case, the Z could be interpreted as the initial of a completely different word. Possibilities:

1. Laughing out loud ZBANG! - this would indicate that the violent laughter has caused the person to fall and hit the ground, thus creating a loud sound;
2. Laughing out loud ZTUPID - seeing as Z is so often used as a replacement for S, it makes sense. It's also a very positive thing, when you consider that admitting you have a problem is the first step to recovery;
3. Laughing out loud ZENITH - the person doing the laughing has entered a state of astral trance...
A: - I'm a complete idiot, with absolutely 0 knowledge about anything even remotely intelligent
B: - Lolz
by Alinutza March 21, 2008
Get the LOLZ mug.
LAUGH OUT LOUD ZILLIONS

Laughing out loud zillions of times like a moron. Skinny, tall, white males in their early twenties do this. They tend to post "LOLZ" on other people's Facebook walls while interrupting a conversation between other people and pretend they patented the phrase. Really, the term "LOLZ" is just another way of saying they are lacking down below. LOLZ
Fred: I saw a funny commercial the other day, it made me laugh.
Juan: Was that the one with the big dog?
Fred: Yea, that was it!
Andrew: LOLZ! Hey guys, can I be included in this conversation?
by ANDYLAMA December 10, 2010
Get the LOLZ mug.
Unintelligent version of LOL. One word to describe how stupid the person who wrote it is.
by Fran January 14, 2004
Get the lolz mug.
a slang Tagalog word, shortened form of "ulol", which is a swear word.
In Filipino: "Lolz ka talaga. Pahamak ka lagi."

Translation: "You're such a fucktard. You always screw things up."
by annymar October 17, 2006
Get the lolz mug.
1. A more literate way of saying "lol".
2. A way for literates in chatrooms to make fun of illiterates.
illiterate: lol im kooler than u!!

literate: lolz!
by omgfgt. August 27, 2005
Get the lolz mug.
Laughing Out Loud ZULU
The last letter "z" punctuates the common acronym for "Laughing Out Loud" and provides a visual hard stop, or "end of line"; commonly interpreted as a "courtesy laugh." The "z" may have origins in the phonetic pronunciation, "Zulu," in common use by many western military forces. The letter "z" is also the last letter of the modern Latin alphabet. While LOL is rooted in the common history of Internet chat, the appearance, meaning, and use of the final "z" remains debated.
bofh315: A horse walked into a bar.
bofh315: The bartender asked, "Why the long face?"
lusr1435: lolz
by Mit Enots May 31, 2006
Get the lolz mug.