A toga party is a type of costume party in which attendees are expected to wear a toga, a distinctive garment of Ancient Rome, normally made from a bed sheet, and sandals. Toga parties held by college or university students are associated with keg parties and excessive drinking.
The earliest known college toga parties took place in the early 1950s. Decades before such Greek-themed parties became known as ‘toga parties,’ similar parties, generally called ‘bed sheet and pillow slip’ parties (or simply, ‘pillow slip’ parties), in which attendees wrapped themselves in sheets and pillow cases, were regularly held by fraternal orders (like the Masons, Odd Fellows, and Elks), civic organizations, and church groups.