Anonymous (used as a mass noun) is a loosely associated hacktivist group. It originated in 2003 on the imageboard 4chan, representing the concept of many online and offline community users simultaneously existing as an anarchic, digitized global brain.
Butactually.com is a new kind of online dictionary created by a team of students at NYU Gallatin who seek to document, organize, and provide a platform for anyone to share new activist hashtags.