volcano 

A code word letting others know that they are cock-blocking your efforts with a young lady.

Dude, volcano. Volllcccaaannnoooooo!!!

volcano by Newbs September 6, 2008

volcano 

when a man is about to orgasm, he pulls out his dong, aims it at his lover, squeezes his balls with great force while he is ejaculating, then with one powerful forward stroke on the dong, a large amount of baby gravy explodes all over her.

Right before i was about to call it quits, i volcanoed all over my girlfriend's body

volcano by Agent Cumbubble May 8, 2007

Volcano 

To volcano is to excrete faeces with extreme speed, often in the form of diarrhoea.

Several hours after Frederick overdosed on dietary pills, he volcanoed his pants during a press conference.

Volcano by Aexerus February 19, 2011

volcano 

the shape your asshole make when you grunt to bust ass

my volcano just erupted!

volcano by ass kracker July 29, 2012

volcano 

when a man or women shits into another persons anus or vagina and then that person pushes with great force to push the shit back out thus, the volcano.
the volcano can be preformed with the ass or vagina facing up into the air, so that the shit goes up rather than down, this method i can also be called the shit fountain.
another method can be to stand up afteer the shit was entered and once in standing possession, force the shit out so its falls, this method can also be known as the shit waterfall.

" oh my god man, i just did a volcano to my girlfriend."

volcano by julian mcqueen March 14, 2010

Volcano 

The sexual act when you lay a woman down on her back and shit in her pussy during her period. Then you slam her legs shut and watch it all spew out, like a volcano.

I volcanoed your mom last night, I wouldn't go in her room.

Volcano by K Brad January 6, 2008

Volcano 

(v) - having an intense pleasurable reaction to something. When you "erupt" in a pleasurable manner.

(adj) - Looking extremely hot and sexy, irresistible ; unattainable

(n) - hot piece of awesomeness/sexiness

(V) - ex. "I just volcanoed when she said I looked sexy

(ADJ) - ex. "She looked so volcanic in her dress at the party last night, I volcanoed just looking at her"

(N) - ex. "She looked like such a volcano when I saw her last at that party let's hope she still looks as volcanic as I remember"

Volcano by ms.volcano April 9, 2011