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.
by poobicus August 21, 2010
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The overly large extended butthole right before you shit which resembles a volcano
Holy shit dude your dog has wicked volcanus anus!
by Urban Thinker March 14, 2015
Get the volcanus anus mug.
The overly large extended butthole right before you shit which resembles a volcano
Holy shit dude your dog has wicked volcanus anus!
by Urban Thinker March 14, 2015
Get the volcanus anus mug.