Top Definition
When you take a dump, then when done before you wipe you look down and you see a volcano reaching out of the water, like some majestic mountain in the south pacific.
"I must have eaten some bad bbq last night. This morning after taking my normal dump. I looked down and saw a Toilet Volcano, steam rising from the water. I reminded me of of the last time I was in Hawaii."
by Manshoon July 13, 2009
5 Words related to Toilet Volcano

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