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A difficult sexual maneuver whereby a female completes multiple back-spins naked while becoming so aroused as to cause a fountain like spray to emanate from her vagina. The spray should land in a perfect circle just outside the circumference of the back-spins.

Female military members must throw a salute just above the vagina during the maneuver to earn full credit.
Her Circle Geyser was so perfect, I threw a penny into her vagina and made a wish.
by LZyouknowwhoiis January 29, 2009
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