What Is Rule 33 of the Internet? “Lurk Moar,” Explained
Search "Rule 33" and you'll mostly get law pages, because in U.S. federal courts, Rule 33 of the Federal Rules of Civil Procedure covers interrogatories: written questions one side in a lawsuit must answer in writing, under oath. This page is not about that. If you need the legal rule, a law library or an attorney is the right place to go.
This page covers the other Rule 33: the one from the Rules of the Internet, the joke rulebook that came out of 4chan's /b/ board around 2006–2007. In the most widely shared version of that list, Rule 33 is just two words: "Lurk moar." (You'll also see "Lurk more," sometimes with "it's never enough" added.)
What it means: before you post in a community, lurk. Read the threads, learn the in-jokes, figure out what the regulars already know, and only then join in. It was a put-down aimed at newcomers who posted too early, and it was also real advice.
There's no official version of the list, so a few copies number their rules differently. Most people know Rule 33 for one reason, though. It's the rule right before the famous one, Rule 34.
What Does Rule 33 Mean?
The short version: "Lurk moar"
Rule 33 tells you to watch before you talk. In the widely copied 4chan-era list it reads "Lurk moar", or in some copies "Lurk more – it's never enough". Either way the instruction is the same: you haven't read enough yet, so keep reading.
What "lurking" actually means
"Lurking" is old forum slang for reading a community without posting, and "moar" is the lolspeak spelling of "more" that was everywhere in 2006–2007. A lurker learns the board's memes, its running jokes, and the mistakes that get newcomers laughed at, all before typing a word.
Insult or advice? Both.
On 4chan, "lurk moar" was the standard reply to anyone who broke an unwritten rule, so it landed as a put-down. But it is also genuine advice wearing a joke: new users who post before learning a board's customs get things wrong and annoy the regulars. It descends directly from the older programmer retort RTFM ("read the manual").
Where Rule 33 Comes From
4chan's /b/ and the 2006–2007 Rules of the Internet
The Rules of the Internet started as an in-joke on 4chan's /b/ board. An early copy was documented on Encyclopedia Dramatica in January 2007, and a version claiming to contain fifty rules was posted to 4chan on 15 February 2007. The first two entries parody Fight Club ("Do not talk about /b/"), and the list runs through a mix of board etiquette, memes, and deliberately absurd "laws" of online life.
Why different lists give different wording
Because the list was crowd-edited for years (some copies stop at 47 rules, others run past 100) the text attached to any given number drifted. Alternative versions of Rule 33 you may run into include:
- "When in doubt, it's a man." A joke about guessing the gender of anonymous posters, listed as Rule 33 in some later copies.
- A "forbidden" rule. A few versions make Rule 33 a gag about a secret that must not be discussed, playing on Rule 1 and Rule 2.
- Nothing at all. Shorter lists skip numbers entirely, jumping from the low 30s to Rule 34.
If someone quotes a Rule 33 that isn't "Lurk moar", they are not wrong so much as reading a different copy. Treat the rules as folklore rather than law.
Rule 33 vs. Rule 34 (and Rule 35)
Rule 33 is the last "ordinary" rule before the list's most famous pair: Rule 34 ("There is porn of it. No exceptions.") and Rule 35 ("If no porn is found at the moment, it will be made."). Rule 33 is about behaviour; the next two are about content. They sit side by side only because of their numbering, which is also why so many "rule33" searches are really about its neighbour. For the whole list, grouped and explained, see the Rules of the Internet.
Is Rule 33 Still a Thing?
Reddit sidebars, Discord #rules channels, "read the FAQ first"
The wording has aged, but the idea is everywhere. Subreddits pin their rules and FAQs, Discord servers make you read a #rules channel before you can talk, and "search before you post" is standard etiquette on almost every forum. That is Rule 33 with the attitude taken out, and it is arguably the one rule on the original list that still applies to every online community today.
Where the phrase shows up today
"Lurk moar" itself survives mostly as an ironic callback in meme-literate spaces. It is the same comeback, now half nostalgia, aimed at someone who clearly just arrived.
Rule 33 FAQ
What does "lurk moar" mean?
"Lurk" is forum slang for reading without posting; "moar" is lolspeak for "more". Together they tell a newcomer to keep observing a community until they understand its conventions, in the same spirit as the older acronym RTFM. On boards like 4chan it was the standard reply to anyone who broke an unwritten rule.
Is Rule 33 of the internet related to Federal Rule of Civil Procedure 33?
No. Federal Rule of Civil Procedure 33 governs interrogatories, the written questions a party to a U.S. federal lawsuit must answer in writing and under oath. Rule 33 of the internet is a 4chan-era joke rule about lurking before you post. The two only share a number.
Who wrote the Rules of the Internet?
Nobody in particular. The list grew out of anonymous 4chan and IRC in-jokes, was documented on Encyclopedia Dramatica by January 2007, and was rewritten by countless users afterwards. That is why there is no single official version.
What comes after Rule 33?
Rule 34, the famous one: "There is porn of it. No exceptions." It is followed by Rule 35: "If no porn is found at the moment, it will be made." Rule 33 is best known simply for sitting right in front of that pair.
Lurked Enough? Put It to the Test
Rule 33 says to watch before you talk. If you've spent years lurking in anime, gacha and gaming communities, you've probably got a sense of which characters the internet can't stop drawing. Rule34Game tests exactly that. It is a Higher or Lower guessing game: every round shows two characters with official artwork and one post count from rule34.xxx's public tag statistics, and you guess whether the other character's hidden count is higher or lower. Only the numbers come from rule34; the page itself is safe for work.
Try a few rounds right here, or take the Daily Challenge: 10 matchups, the same for everyone, new every day at midnight UTC.
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Keep Exploring
Read the full Rules of the Internet, learn how Rule 34 Higher or Lower works, or head to the Rule34 Game homepage for Endless mode and today's Daily Challenge. Or start with a roster you know: the anime rule 34 game pits Naruto, One Piece, and Chainsaw Man characters against each other, and the Pokemon rule 34 game is where most streaks go to die.