<Table> <Tr> <Td> </Td> <Td> Look up Aunt Flo in Wiktionary, the free dictionary . </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Look up Aunt Flo in Wiktionary, the free dictionary . </Td> </Tr> <P> Aunt Flo is a popular euphemism referring to the menstrual cycle . It may also refer to: </P> <Ul> <Li> A character in Bod (TV series) </Li> <Li> List of South Park families #Aunt Flo, a character in South Park </Li> </Ul>

Where did the term aunt flo come from