A 'meme' is a virally-transmitted cultural symbol or social idea. The majority of modern memes are captioned photos that are intended to be funny, often as a way to publicly ridicule human behavior. Other memes can be videos and verbal expressions. Some memes have heavier and more philosophical content.
The "meme" word was first introduced by evolutionary biologist, Richard Dawkins, in 1976. "Meme" comes from the Greek word "mimema" (meaning "something imitated", American Heritage Dictionary). Dawkins described memes as a being a form of cultural propagation, a way for people to transmit social memories and cultural ideas to each other. Not unlike the way that DNA and life will spread from location to location, a meme idea will also travel from mind to mind.
