What is the origin of the idiom "on the rag" and when to use it?

The origin of the phrase "on the rag" is unclear, but it is believed to have emerged in the early 20th century as a derogatory slang term. The phrase likely originated from the association of menstruation with the use of cloth menstrual pads or rags before the widespread availability of modern sanitary products. It is considered a crude and disrespectful term that objectifies and diminishes women based on their menstrual cycle. The phrase is widely recognized as offensive and has no place in respectful or inclusive language. It is important to promote understanding, empathy, and respect when discussing topics related to menstruation.