upside-down volcano

The act of deficating in an explosive manner. This is usually a diahrea dump resembling a volcanic eruption, upside-down.

I just took the worst shit ever. It was an upside-down volcano.

by ruppge December 8, 2007

atomic volcano

When a person is fucked so hard in the ass that they throw up.

Jeremy fucked me anal so hard last night that I had an Atomic Volcano; now my esophagus is really sore.

by Upinyourmommy December 9, 2010

erupting my volcano

in a sense it means masturbation. your penis is the volcano and as of the semen comes out like lava.

This from Fuller House season 1
Jackson: sigh I am exhausted I was up all night erupting my volcano.
Stephanie: Dude TMI.

by FullerHouseking101 March 11, 2021

Volcanus

A term used to describe the unbearable burning sensation of your anus during a bowel movement that usually occurs after injesting spicy, exotic, entrees

That Thai food gave me volcanus. I was late for my meeting because I had to put the flames out.

spicy butt
butt lava
burning bum

by Wildman Bill June 18, 2009

Alabama volcano

When a girl fills her mouth with liquor, gives a man a blowjob, and right as he's about to come lights his penis on fire with a lighter, giving the effect of a volcano as the semen leaves the flaming penis.

"This girl gave George an Alabama volcano and he couldn't walk straight for two weeks!"

by anongeo January 10, 2009

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

Shit volcano

May be used to describe a person or object that spews out excesses of crap in verbal or physical form.

Word derives from a combination of the relatively harmless cuss shit and volcano; which until just recently wasn't considered quite as negative a word as it currently is (post Icelandic volcano ash cloud malarkey).

Carl is such a shit volcano.

by Shitvafjökul July 7, 2010