Wiktionary
n. A party at which the participants wear an approximation of ancient Greek togas, typically made from bed sheets.
Wikipedia
A toga party is a type of costume party with a Roman or Greek theme and in which male and female attendees are expected to wear a toga, or a semblance thereof, normally made from a bed sheet, and sandals. At toga parties, the costumes, party games and other entertainment often follow a Roman or Greek theme. Toga parties held by college or university students are associated with keg parties and excessive drinking.
The first recorded college student toga party was in 1953, when Pomona College students wore togas and ivy wreaths, and brought their dorm mattresses to freshman Mark Neuman's home on Hillcrest Avenue in nearby Flintridge. The Guinness World Record for the largest toga party is 3,700 participants. The event, organized by the University of Queensland Union and the Queensland University of Technology Student Guild, was held on 24 February 2012 at Riverstage in Brisbane, Queensland, Australia.
Usage examples of "toga party".
I had just spent the entire evening taking readings of the Delta Smegma Hi-Fi fraternity's annual toga party, panty raid and orgy, and I was eager, as you might very well imagine, to feed the results into my computer-monitored apparatus.
Opening the door only wide enough to accommodate his thin frame, Roman slipped into the cadaver vault, pausing to peer back worriedly at the hallway before closing himself in with Corky and the twenty naughty members of the toga party.