Dirt Curtain Share definition Flag A dirt curtain is the (specifically long in length) ring of pubic hair surrounding the butthole. Thanks Paul! I feel so much cleaner, your bidet really blasted my dirt curtain. Dirt Curtain by Tayne Morano April 24, 2020 0 0 Get merch Get the Dirt Curtain mug. Buy Now — $32.95 See more merch