Heau: noun (pronounced:ho) Share definition Flag a person of low intelligence; moron; dunce. Heau: noun (pronounced:ho) Not only is he a butt licker and a douche, he is also a heau. Heau: noun (pronounced:ho) by Berta Ganoush November 22, 2010 0 0 Get merch Get the Heau: noun (pronounced:ho) mug. Buy Now — $32.95 See more merch