Crusty Volcano

A rare phenomenon in which several pubic hairs erupt from outside and within the urethra during the ejaculation process. This serves as a primary breeding ground in which crabs, syphilis and AIDS may develop and/or regress. Causes uncontrollable itching and in later stages causes fuzzy discharge and erectile dysfunction resulting in permanently hairy spooge.

Dude, I got a mouthful of pubes from Bindi's Crusty Volcano!

by Dicks McCockmaster November 5, 2007

Toilet Volcano

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

Popcorn Volcano

Jumping in your movie seat with a container of popcorn causing the popcorn to fly up in the air like a volcano.

While watching Halloween X there was a scary scene that resulted in several popcorn volcanoes.

by kidgoat April 24, 2011

Cincinnati volcano

When you take a dump on an airplane toilet that is so big you gotta get up and take a look. In that moment of excitement, you forget to put the seat down and hit the flush button. The vacuum toilet sprays excrement all over you and the bathroom.

Hey Greg, did you pack an extra shirt in your carry-on? I just had a Cincinnati volcano in the bathroom.

by Tbutter November 7, 2015

Exploding Volcano

This is when three guys jizz in your butt and then you squeeze and all the jizz comes out exploding like a volcano.

Oscar let 3 guys jizz in his bum and then he bent over and did the exploding volcano.

by UziQP November 20, 2018

Madagascarian Volcano

The Madagascarian Volcano is a sexual act in which a Russian male stands a Madagascarian women on her head, pours various types of alcohol into her vagina and makes her squirt which then causes a massive eruption of female genital fluids as well as alcohol.

Yeah we performed the Madagascarian Volcano last night, subsequently she almost passed out for being in the position for too long.

by bigrussianman69 April 19, 2019

volcano penis

This is when a man/boy has a long foreskin which makes their penis look like a volcano

For example, Rhys McGowan sent a dick pic to Abbie and then Abbie said he has a volcano penis

by Abooooooi November 12, 2017