meme

(pronounced: meem)

Pictures, videos, links, and other content that spreads quickly from one person to another through the Internet. Memes can also refer to an idea, concept, phrase or any other unit of information that goes viral.

Historical perspective: Some well-known Internet memes include Lolcats, the Numa Numa Dance (a video of a teenager dancing to a pop song), a hoax e-mail about Bill Gates willing to pay money for forwarding the e-mail, a Web site showing hamsters dancing to music, and millions more.