At Oxford and Cambridge Universities, a bop is a party held within a College. The venue is a room in the College, usually the bar. Imagine a school disco fuelled by large amounts of alcohol. Bops are generally held every two weeks, on a Friday or Saturday night. Each of these parties has a different theme (eg. Queer Bop, Ghetto Fabulous Bop, Bin Bag Bop). Members of the host College gain free entry, while guests are often charged for the experience.