No Shit September Share definition Flag A challenge of a month in September where you can't go pooping for a month. 99% people failed this challenge. I'll be taking this No Shit September challenge to prove that I'm not a human. No Shit September by Mlemwelp September 3, 2020 0 0 Get merch Get the No Shit September mug. Buy Now — $32.95 See more merch