Twitter The most controversial internet crazes Twerking Twerking, a mixture of twisting and jerking, has been around since the late 1990s, but its popularity dramatically increased after Miley Cyrus 'twerked' at the 2013 MTV VMA awards with Robin Thicke, prompting fans to upload their own versions on Youtube - we've even had twerking stormtroopers. It's since been accused of corrupting the minds of young people and, last year, 33 students were suspended after making a video of themselves 'twerking' using school equipment. Machinima The most controversial internet crazes Happy Slap It's been almost a decade since the Happy Slap craze broke out in the UK, but what started out in as a small joke between friends in Lewisham in 2004 eventually became a nationwide phenomenon. Happy Slapping involveda victim being filmed on a camera phone getting slapped. As the craze spread, incidents became more and more vicious and it was linked to a rise in bullying in school playgrounds. In 2008, a teenage girl was sentenced to two years' detention after filming the fatal beating of a man. nydailynews.com The most controversial internet crazes Tombstoning 'Tombstoning' emerged in 2012 as a much more dangerous fad. It involved finding the highest rock to leap from, giving jumpers sufficient time to change their body position to resemble a tomb falling into the sea. It was invented initially as a way to keep cool during sizzling temperatures, but as the challenges became more daunting, some experienced horrific injuries as a result of jumping into shallow or rocky waters.