UL meaning in Community ?

An urban legend or contemporary legend is a genre of folklore comprising stories circulated as true, especially as having happened to a "friend of a friend" or family member, often with horrifying or humorous elements. These legends can be entertaining, but often concern mysterious peril or troubling events, such as disappearances and strange objects. They may also be confirmation of moral standards, or reflect prejudices, or be a way to make sense of societal anxieties.

Urban legends are most often circulated orally, but can be spread by any media, including newspapers, mobile news apps, e-mail, and social media. Some urban legends have passed through the years with only minor changes to suit regional variations.