Krampus, the "Christmas Devil" of Austrian and Bavarian folklore, has entered the popular culture of North America; who noted,  that "thanks to the Internet and YouTube [Krampus] is now very much on America's Christmas radar", an Internet meme, is an activity, concept, catchphrase or piece of media which spreads, often as mimicry or for humorous purposes, from person to person, via the Internet?
Internet meme An Internet meme ( ) is an activity, concept, catchphrase or piece of media which spreads, often as mimicry or for humorous purposes, from person to person via the Internet. An Internet meme may also take the form of an image (typically an image macro), hyperlink, video, website, or hashtag. It may be just a word or phrase, sometimes including an intentional misspelling. These small movements tend to spread from person to person via social networks, blogs, direct email, or news sources. They may relate to various existing Internet cultures or subcultures, often created or spread on various websites, or by Usenet boards and other such early-internet communications facilities. Fads and sensations tend to grow rapidly on the Internet, because the instant communication facilitates word-of-mouth transmission. Some examples include posting a photo of people lying down in public places (called "planking") and uploading a short video of people dancing to the Harlem Shake.
Meme pool A meme pool is the sum total of all memes (transmittable units of cultural ideas, practices, symbols) present in a given human population. The term is analogous to gene pool. The meme pool is in essence the matrix of the whole of the culture of a population. Because the memes of instruction of production of material culture are included, then the entire culture, including material culture and interactions between individuals is determined by information held within the meme pool. The state of a meme pool determines what sort of memes will be reproductive, and in this way it may be thought of as the meme-logical environment.