Definition of Aunt Flo
Aunt Flo 
noun
- menstrual period. Sometimes abbreviated AF. Also Aunt Flo and cousin Red.
Man, Aunt Flo is visiting.
AF came today.
I had unexpected company last night... Aunt Flo and cousin Red came to visit.
by Emily, UC Berkeley, Berkeley, CA, USA, Jan 13 1998 (Edit definition)
origin
- This term may be a reference to unwelcome family members who arrive unexpectedly and without prior notice.
by Emily, UC Berkeley, Berkeley, CA, USA, Jan 13 1998 (Edit definition)
Discover slang words with the same meaning:
- menstruation, menstrual period (related to)
- mythical people, creatures, and conditions (list of)
- acronyms (list of)
Slang terms with the same root words:
- aunt: Aunt Flo and cousin Red – Aunt Jemima – (show 1 more)
- flo: Aunt Flo and cousin Red – flo – (show 1 more)
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