Genitalsies Share definition Flag Genitalsies is a game with origins similar to that of 'footsies', but instead of using your feet, you use your genitals. Dennis: "Jess, are you playing genitalsies with me?" Jess: "Maybe." Genitalsies by DR. N + JB November 21, 2010 0 0 Get merch Get the Genitalsies mug. Buy Now — $32.95 See more merch