1 definition by jobo1234

A move performed during masturbation that involves the man jacking off and right before ejaculating the man ties a string right below the head of his penis and tying it so tight that it cuts of circulation blocking the ejaculation process. Then after 30 seconds while the cum is building up in the lower part of the man's penis, the man unties the string and his cum blasts out.

If preformed correctly the man's cum will look red like lava as a result of blood mixing with the sperm.
Man I just did The Volcano to myself last night and now i feel messed up.
by jobo1234 February 4, 2011
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