Prunenanny Share definition Flag The wrinkly vagina of an old or aging lady. Stemming from the more traditional term for a woman's vagina, Poonanny. "That cougar may look pretty young, but I heard she's got a total prunenanny" Prunenanny by CB NOLA September 8, 2009 0 0 Get merch Get the Prunenanny mug. Buy Now — $32.95 See more merch