by Sincilian February 25, 2009
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.
by Buckky Satan January 22, 2014
Philip: "I ate so much El Pollo Loco this morning that I just made a volcanic island... it almost made contact!"
by ReekRend2 February 28, 2010
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.
by TridenT March 27, 2005
A threesome whose sexual escapades are both incredibly hot, and spews what, inside the metaphor, would be refered to as "magma".
A volcanic threesome is if you were to be involved in intercourse with Karen O and Nick Zinner at the same time.
by Le Soph November 12, 2006
this is when your girl ties your penis with a rope and then starts to give you head or a handjob. when your about to come, tell her and then she'll take out a knife and cut off your penis at the rope. the mix of blood and cum shooting out will be like a volcanic eruption.
david had to go to the ER after his girl gave him a volcanic eruption. he lost a lot of blood, but he should be fine.
by scahn October 24, 2006
Form of revenge for such acts as the Mexican Avalanche or Strawberry Milkshake when during a perfectly good bj the chick bites into your rod and you burst a bloody wad, much like lava from a volcano
by The BIG Nasty December 20, 2004