n. a woman's menstrual period. (Used especially in expressions. Refers to the menstrual flow.)
I am sorry to announce that Aunt Flo has come for a visit.It's Aunt Flo again. She is such a pest.
Aunt Flo
noun the bleed period of the menstrual cycle US, 1954
Aunt Flo
euphemism A humorous term for a menstrual period. A pun on the "flow" of blood and tissue from the uterus. Ugh, I have horrible cramps because Aunt Flo has come to town.
Aunt Flo
n. a woman’s menstrual period. (see also visit from Flo. Refers to the menstrual flow.) I am sorry to announce that Aunt Flo has come for a visit.