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A female's monthly period.
I'm bummed because Aunt Flo arrived last night.
by SAgent September 30, 2005
251 55
a womans menstral period!
Aunt flo's in town! so I may go get my red wings
by mooseknuckles October 25, 2002
300 56
a woman's menstrual period
Don't mind her. She's just mad because Aunt Flo is here and she's out of pads.
by Light Joker December 28, 2005
183 64
Cartman's aunt who visits his mom every month. She has perkinsons disease.
I hate when aunt flo comes
by carly cline December 25, 2005
74 168