8 definitions by Professor Poo

The hole of a volcano, which spouts out lava and smoke during an eruption.
Mount Pinatubo must have had a huge volcanus to black out the sky for so long after it erupted.

"You're from Iceland? That's just one whole island of volcanuses...you can't trust people who live on volcanoes, and I certainly wouldn't lend them money"

After eating a pizza topped with chillies, John's anus felt like a volcanus.
by Professor Poo April 16, 2010
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