Aunt Flo

UK/ɑːnt fləʊ/

proper noun

A personification of the menstrual period or menstruation.

“Aunt Flo came to visit last night: that's why I was so ratty.”

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Meanings

proper noun

alternative Aunt Flow

  1. euphemisticslangA personification of the menstrual period or menstruation.

    Aunt Flo came to visit last night: that's why I was so ratty.

Synonyms & antonyms

Also see
bleedingcatameniacursemenstruationshark week

Origin

Pun on flow and Flo (nickname for Florence, Flora, etc).

Full word history & related roots →

Translations

Chinese Cantonese 大姨媽 /大姨妈
  • 大姨媽 /大姨妈 (daai⁶ ji⁴ maa¹)slang, personification of the menstrual period
Chinese Mandarin 大姨媽 /大姨妈
  • 大姨媽 /大姨妈 (dàyímā)slang, personification of the menstrual period
Finnish täti
  • tätislang, personification of the menstrual period
French les Anglais ont débarqué
  • les Anglais ont débarquéslang, personification of the menstrual period
Polish ciotka
  • ciotkaslang, personification of the menstrual period
Cite this entry
APA

Aunt Flo. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Aunt%20Flo

MLA

“Aunt Flo.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Aunt%20Flo. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Aunt Flo,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Aunt%20Flo.

Source: Aunt Flo on Wiktionary, CC BY-SA 4.0.