AFlash Mob is a group of at least ten people who assemble suddenly in a public place, perform an unusual and seemingly pointless act for a brief time, then quickly disperse, often for the purposes of entertainment, satire and artistic expression. Flash Mobs are usually organized via social media, or viral emails. The term was coined to reference the way the mobs assemble. It has also been used to describe a number of robberies and assaults perpetrated suddenly by groups of teenagers. However, Bill Wasik, originator of the first Flash Mobs – and a number of other commentators – have questioned or objected to the usage of “Flash Mob” to describe criminal acts.