pusenis Share definition Flag a person who has both a vagina and a penis but the penis is very small and the vagina is like the Grand Canyon... kind of like peniussy but cooler. Pat's puffy pusenis is poking out of his spandex leotard. pusenis by C-Bearrrr April 14, 2008 0 0 Get merch Get the pusenis mug. Buy Now — $32.95 See more merch