From the English word rotten, meaning "In a state of decay/cruel, mean, immoral/bad, horrible". In the Icelandic children's television program LazyTown, Robbie Rotten is the main antagonist of the show who desires silence and peace, continuously formulates reckless schemes that often feature him masquerading in various disguises as a means of hoodwinking or tempting residents away from an active lifestyle. He passionately abhors the influence of Sportacus and Stephanie, and a number of these schemes are intended either to do away with them or lure the people of town away from a fit lifestyle. Ironically, in the process of attempting to convert the town to laziness, Robbie places so much effort into his schemes that he becomes one of LazyTown's most active residents. In the Icelandic translation, as well as plays predating the show, he is known as Glanni GLÆPUR.