Anus Volcanus Share definition Flag When your anus burns from an excruciatingly painful turd. Oh man, I ate so much taco bell last night that I had an anus volcanus for three hours after the poop deposit. Anus Volcanus by poobicus August 21, 2010 0 0 Get merch Get the Anus Volcanus mug. Buy Now — $32.95 See more merch