You may be refering to a different slang but as far as everyone I know and have met, they know it as " No Shave November"
Movember is a national charity, I'm very surprised you haven't heard of it, famous people take part to raise money.
I'm participating in no shave November, and I'm still gonna get some. Body hair is natural, women in the 1400s didn't shave, it's not a big deal and it's not something to be ashamed of.
Not even doing that. I shaved everything completely off on the 31st. Now it's time to buckle down and commit.
Testicular cancer awareness month is why people do no shave November. And yes. My hair grows quickly. I have to shave usually every other day.