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Phrase(s): on the rag
1. Sl.menstruating. (Potentially offensive. Use with caution.) • Kim’s on the rag and in a bad mood. • Sue doesn’t go swimming when she’s on the rag. 2. Sl. illtempered. • Bill is on the rag and making trouble for everyone. • Wow, Bob, you are on the rag. What’s eating you?
McGrawhill's American Idioms And Phrasal Verbs