http://news.yahoo.com/s/chitribts/20050619/ts_chicagotrib/happyslapyobsbreedfearanger
It's a criminal assault. Groups of teenagers approach an unsuspecting person and begin punching and kicking him or her while capturing it all on their mobile camera phones. The images are later uploaded and shared on the Internet.
The victims can be young or old, male or female. Bus stops, tube stations and parks are considered prime venues. In most cases, the injuries are minor. But on Saturday, British newspapers reported that an 11-year-old London girl had been raped by a gang of happy slappers, and Scotland Yard confirmed that three 14-year-old boys had been arrested.
The craze apparently started in London late last year but has spread across the country. British Transport Police say they have investigated about 200 attacks in London alone since the beginning of the year, but they acknowledge that most go unreported.
Happy slapping is the latest manifestation of what Britons call "yob culture." The word "yob" dates to the 19th Century--it likely derives from "boy" spelled backward--and it denotes a kind of loutish, anti-social behavior associated with working-class youth in Britain's urban centers. The British soccer hooligan is the quintessential yob.