A code word letting others know that they are cock-blocking your efforts with a young lady.
Dude, volcano. Volllcccaaannnoooooo!!!
by Newbs July 17, 2006
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When three men circle a women. (One inserts in mouth, One inserts in vagina, and other places on middle back) Join hands, forming a volcano. When the man who inserted in the mouth ejaculates, the female than proceeds to spit his baby juice into the air. Resembling an eruption.
Lets do our science project which is to make a volcanoe!!!!
OK! Lets call up shaniqua!
...
ERUPTIONNNNNN!!!!!!!!

by LEOPARD PANTS November 10, 2008
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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.
by Aexerus January 29, 2011
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the shape your asshole make when you grunt to bust ass
my volcano just erupted!
by ass kracker March 13, 2012
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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.
by K Brad December 15, 2007
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sara: Do you see that girl in the last nights clothing with raccoon eyes?

jess: yea she's such a volcano
by melmelyell September 22, 2011
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(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"
by ms.volcano March 24, 2011
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