Monogyna Share definition Flag The act of penetrating the same vaginal canal for one's wholly existence. 1) I promise myself to this monogyna in sickness and health, for better, for worse, till death do us apart; 2) Sir, kindly shut your monogyna Monogyna by Cowtown 1 St SW July 10, 2011 0 0 Get merch Get the Monogyna mug. Buy Now — $32.95 See more merch