Fu Man Goo Share definition Flag Cum dripping down both sides of your mouth and chin resembling that of a Fu Manchu mustache. I Fu Man Gooed myself when I hung upside down from my bed and shot my load at my chin. Fu Man Goo by Gizmaster May 15, 2009 0 0 Get merch Get the Fu Man Goo mug. Buy Now — $32.95 See more merch