Elvirus means in slang: This is a disease that affects college dorms. It’s spread by creepy and naughty roommates who love to dance too hard. The symptoms include a distinctive smell, similar to when someone doesn’t shower for prolonged periods of time, and an awkward appearance. Despite the tireless efforts of scientists around the world, there is no cure for Elvirus. For innocent victims who have been infected, the only way to save them is to return the disease to their homeland.
(in Slang Dictionary, added by Eugene Harding)