Wiktionary
n. 1 (context British English) An annual event in many (mainly British) university where students engage in unusual activities to raise money for charity. 2 (context coarse British slang from the former use by women of rags to protect their clothing from menstrual blood English) The days of the month when a woman has her period.
WordNet
n. a week at British universities during which side-shows and processions of floats are organized to raise money for charities [syn: rag]
Usage examples of "rag week".
There's a famous statue of him in the main hall, and during Rag Week once I climbed up it and put a &mdash.
There's a famous statue of him in the main hall, and during Rag Week once I climbed up it and put a —.
As the hermetically sealed door slid open, billows of hot, sulphurous gas tumbled from the room beyond, like so many students from a telephone box during rag week.