Volcanic Shit 

When you're constipated and a fart builds up above the stuck shut, creating more and more pressure. The end result is a painful explosion of shit scattered around your toilet basin.

Argh, my ass hurts so much after that Volcanic Shit I had.

Volcanic Shit by Archaeon December 29, 2012

volcanic snowball 

This one's good.
It's when you jizz in a girls mouth.
She spits it into your asshole.
And then you fart it back into her mouth.

Quit fuckin' around before I volcanic snowball your ass.

volcanic snowball by Lucas Wade May 28, 2005

Volcanic Cum Dump 

When a womans ass gets completely filled with semen from a large group of men, then chugs a bottle og magnesium citrate causing her to expell all the semen like a volcanic explosion.

Dude! We turned a chick into a volcanic cum dump last night! A bunch of guys busted a nut in a chicks ass, then she chugged a bottle of that liquid stuff you drink before a colonoscopy, she violently shit out all that cum all over the place!

Volcanic Cum Dump by XxxDarkKnighxxX June 3, 2023

volcanic rimjob 

tossing your partners asshole with habinero tabasco or red jalapeno tabasco sauce

After fucking Jenna in the ass she asked me for a volcanic rimjob

volcanic rimjob by Sincilian February 24, 2009

Volcanic Island 

A quantity of feces the consistency of wet cement that piles so high that the peak of the mound breaks the surface of the water creating an island.

Man, that burrito from last night turned into a volcanic island this morning.

Volcanic Island by Buckky Satan January 22, 2014

volcanic island 

When you shit so much that it rises in a cone-shaped pile above the water in the toilet bowl.

Philip: "I ate so much El Pollo Loco this morning that I just made a volcanic island... it almost made contact!"

volcanic island by ReekRend2 February 27, 2010

Volcanic Turtle 

A freaking moron who likes Turtles but does not really like Turtles. This person is a queer and is obessed with Urbandisctionary.com. Has problems with his brain and likes to love himself, because he has noone else.

That freaking Volcanic turtle is a bitch!

Volcanic Turtle by TridenT March 26, 2005