aunt Flo:

From the expression ' my aunt Flo's here/visiting ', a euphemism for a woman's monthly flow; ' aunt Flo's little dog Spot ' refers to menstrual spotting. See menstruation for synonyms.
See Also: aging actress, aunt Flo, aunt Flo's here, aunt Mame, aunt Mathilda, chin-strap, fallen star, grandma, grimm's fairy, menstruation, old hen, old queen, prune person, rancid flower, soiled senior citizen, wheelchair set

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