Zephyr Window Share definition Flag A hole in ones underwear at the back end, so that when you fart, the zephyr wind can flow through. Dude! i can see your devils onion ring through your zephyr window. Zephyr Window by nybiru April 2, 2011 0 0 Get merch Get the Zephyr Window mug. Buy Now — $32.95 See more merch