Short for "anti-hero." The term antihero has a variety of definitions, ranging from unconventional heroes, a protagonist lacking heroic qualities or even one possessing traits antithetical to the traditional hero. (Source: Wikipedia)

A gang of hackers who abuse steroids.

Shorthand, phonetic spelling of "band," as in: We should band together and fight the moderators.

Someone who only gets a "B" in all of their classes. Above average, but nothing special.

On Saturdays, post pictures of dead animals (specifically cats) in threads marked "CATURDAY"

A copy machine prank that involves Gorilla glue and having someone try and copy their ass. This prank is so legendary that the word itself is funny. Go tell everyone you know what this means.

CP stands for Cute Pictures. If you love adorable, fluffy animals; ask for CP.

The official way of bumping a topic is to post "DESU DESU DESU" without quotes. Anything else is frowned upon.

"Funny And Interesting, Lol." Anyone who says FAIL likes you.

If someone calls you a furfag, they are implying that you need to shave you big hulking gorilla!

If someone calls you a gaiafag, they mean you are too down-to-earth and you need to seem more whimsical by asking more questions. Otherwise they might question your sexuality.

A random number followed by "GET" implies that the person who posted this has had sex X number of times. The poster is obviously a big fat liar since image board users never get laid.

When someone says GTFO, you aren't posting frequent enough and they're worried that you are no longer online. Keep posting to reassure them that you're still here.

Short for hairball. Post/ask for this in "caturday" threads.

This indicates that the user was trying to say "GHOSTS" but forgot the G in their excitement. Usually follows incomprehensible numbers and poorly-structured words that resemble a domain name.

If someone says they're "in b4" something; they are predicting that it will be posted and are trying to ruin the surprise. Don't let them do it.

Intra-Topic Threat: If you post whatever follows "ITT" then the moderators will ban you for disobeying the rules.

Jiggly Breasts. If you want to see well-endowed women, and not flat-chested girls, ask for JB.

An icon or forum avatar with comedic value. Sometimes just called "Loli."

This is a 4chan user's way of blindly accusing someone of being a n00b. To counter their "Lurk Moar," refer to an appropriate term to fire back with ("an hero" is a global one).

When used in a sentence, it's a misspelled form of "more." But when it's used by itself, it stands for "Must Overcome Abdominal Release"-- implying that the associated image horrified them to shitting themselves. If someone says "MOAR" to a picture posted; do not post any more pictured related to that one. They will become upset if you do.

A post number that, when divided by 1,000,000 using Modulo Division, equals 0. Any post number that is a multiple of 1,000,000 is a MODGET.

If you ever see a post by "moot !Ep8pui8Vw2 ## Admin," automatically call the poster a fake moot, even if the thread is stickied. It's the mods' way of knowing if you're gullible or not.

Stands for "online poster." Anyone and everyone who has posted in the topic (or plans to) is an OP. It's an informal way of addressing all of the viewers.

PROTIP: Saying this before every sentence will make you sound smart and professional.

If you /r/ something, you are requesting that everyone refrains from posting that. If I say /r/ cats, don't post any pictures containing cats.

This means that the person who posted this believes you to be incredibly wise and insightful. Keep posting so that your wisdom might rub off on those less fortunate.

This means that the thread must not be allowed to fade into obscurity. Keep it alive for as long as humanly possible.

Trolls are slow and non-responsive. Don't be a troll-- post every 10 seconds if you have to.

Also known as a social clique; a group of underage users. You'll be respected if you tell people you want to be Underage B&

Being called a "winrar" is about the same as being called a filthy slut. WinRar is a program that opens many various compressed folders; its usage implies that you're either slutty, bisexual, or both. It is slander, so treat it as such.

The action of being locked in a yellow van with a time bomb. It's well known that imageboard users are terrorists who blow up yellow vans for no reason.