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A unique kind of orgasm only available to LSD users and Lord of the Rings fans.

When you ejaculate, the semen morphs into a small wizard statuette, then starts glowing, and a voice is heared yelling the words: "YOU SHALL NOT PASS".

A female version of this has not yet been discovered.
"OMG! I just had a Gandalfgasm!"
by Rukusan August 05, 2005
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2
The end result of blissful LOTR overload.
I had a gandalfgasm after watching all 3 extended LOTR movies. You know - at the point where he sails off in those boats...
by square wheel June 06, 2007
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