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I had never heard the term "first moon party" until I watched this video, which has gone viral over the past 2 weeks. Was the phrase just recently coined by HelloFlo's ad, or has the phrase been in use prior to that to refer to a celebration of a girl's first period? (assuming that people even have celebrations for a girl's first period...)

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The phrase is just First Moon -- the party is not a part of the idiomatic expression. –  Kris Jul 1 at 10:21
Many people celebrate the first menstruation much like quinceañera. This link explains it all. Honestly, first moon parties done RIGHT, aren't as weird as it sounds. It’s a HUGE life event that marks massive changes for the female’s body, no one is going to celebrate your moody-crampy week again, so why not do it the one time and enjoy the free chocolate. –  Melissa Kunsabo Jul 4 at 21:27
My mother threw a huge party for me to celebrate getting my first period. I'm not kidding either. It wasn't at all like the ad though. For one thing, no men were invited or came. For another it lasted an entire weekend. Granted, it was full of hippie-glory and i realize many women would not be into celebrating like this, but for me, it was amazing. I felt so supported and part of an amazing club of strong, courageous, valiant, independent, creative, funny, and beautiful women who would be there should i struggle (as we all do inevitably) through womanhood. –  Libby Jul 17 at 18:46

3 Answers 3

It wasn't coined for the ad.

Oldest reference on Google books seems to be from a novel Catching Heaven by Sands Hall from 2000.

"And I am not giving Hannah a First Moon party, or whatever it's called, when her period comes. She'd die of embarrassment." Jeep shrugged. "Maybe."

There's also this product from 1998: First Moon: Passage to Womanhood

A ceremonial kit containing complete instructions and the elements to stage a celebration ceremony to welcome the young woman to womanhood.

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Very nice find, Neil! –  pacoverflow Jun 30 at 21:48
+1 Good find! ') –  medica Jun 30 at 21:55
At the risk of stating the obvious, I would point out that the connection stems from the similarity in length between the human menstrual cycle and the lunar month. –  Brian Donovan Jun 30 at 23:19
up vote 5 down vote accepted

I have discovered that there is the word menarche, which is used to refer to a female's first menstrual cycle. Wikipedia says its origin comes from the Greek men (meaning moon) and arche (meaning beginning). Merriam Webster says the word was first used around 1900. This is most likely where the phrase "first moon" came from. I also discovered that an alternative for "first moon" is "first moontime".

The earliest mention of the phrase "first moon" I can find is in a 1976 issue of Many Smokes magazine, where it says the following:

When a young man had his first successful hunt, when a young woman had her first moon,

The earliest mentions of menarche or first moon parties I can find are the following:

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I'm pretty sure there's no such thing -- it's just something they made up for the commercial.

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