A scene or image that contains the slightest amount of implicit risque content. This will in turn cause outrage from ignorant parents, right-wing nutjobs, and experts in unrelated fields.

The expected and/or actual reaction to a piece of information, such as an image, describing a phenomenon that most people can relate to. Often the desired and/or actual reaction to a demotivational poster.

1. angel on earth 2. lucifer was also an angel not all angels are good, like some angels actricia is a trickster, two-faced. 3. A master of deception by way of omission or trying the timeless excuse of "I already told you I was going to be doing this.... weeks ago, you must have forgotten" 4. A person that never apologizes when they have intentionally harmed you, and also will never take responsibility but will expect you to when she doesn't like your tone after your reaction to her hurtful actions that yet again have pierced your already bleeding heart.

"You gotta step it up"

The latest variation of "I seriously hope you guys don't do this" (ISHYGDDT) and used in the same manner to indicate that someone is doing something that is wrong, lackluster, or outdated. First appeared on /sp/ in January of 2012. Posting the George Costanza face or a similar reaction image with it is recommended.

A person using a genre/character/show/topic specific picture, an "avatar", accompanying each post on 4chan, typically with the reaction image of the "avatar" relevant to the tone of the post.
Most "avatarfags" belong to an interlocked network of "shitposters".

These "shitposters" are able to circumvent forced anonymity of boards such as /b/ through a Chrome/Firefox extension, "4chan X". 4chan X users can access a network, "Namesync", to monitor ID's of the user's extensions and allow ID ascription.

The equivalent of being a "Tripfag", but only to people using 4chan X and connected to Namesync.

Groups of related "avatarfags" usually participate in "circlejerk" threads, threads where they are the major posters, and post pictures related to the overall theme of their avatars, e.g., furry circlejerks include furry porn and comics; MLP circlejerks include screenshots of the s...

Jaconde aux Mustaches (L.H.O.O.Q.)

In 1919, Marcel Duchamp drew a moustache and goatee with a pencil on a post card reproduction of Leonardo's Mona Lisa, and named his work "L.H.O.O.Q." This, when read aloud in French, gives "Elle a chaud au cul", which means something like "She's got hot pants" or "She has a hot ass." He used an image, reproduced so often that it had become trite and mocked one of the most famous works in the history of painting.

Duchamp's work fell into an art movement that arose in Europe during World War I, known as Dada. This period came into being as a reaction against the unprecedented carnage of war. Artists felt that any civilization that could tolerate such brutality must be swept away, and all of its institutions, including traditional art, along with it. Dada, therefore, was against everything, and ultimately became the primary inspiration for the Surrealist movement.

Physical reaction to a disturbing thought or image. The thought itself makes one physically pucker their ass muscles due to the actual thought.