ZGP Share definition Flag "Zombie Goat Porn": The kind of porn that everyone but you likes to look at. Especially if they are a jerk, or your boss. I was doing maintenance on the boss's computer and found about 10GB of ZGP. ZGP by VIPERsssss December 1, 2004 0 0 Get merch Get the ZGP mug. Buy Now — $32.95 See more merch