- attributive form of rag week, noun.
(plural rag weeks)
- (UK) An annual event in many (mainly British) universities where students engage in unusual activities to raise money for charity.
- (vulgar, British slang, from the former use by women of rags to protect their clothing from menstrual blood) The days of the month when a woman has her period.
- I wouldn't bother trying to get off with her – it's rag week.