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 30, 2009
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A spunk geyser is when you pull out and fire a load across the room. Like Gracia...
Please get a towel, because Mark shot a spunk geyser down the hallway...
by Tcal October 9, 2015
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Verb; During coitus, you gleefully have your partner roll-over on his or her back with there anus facing skyward. You then proceed to urinate into the gaping vortex. Your partner then evacuates the warm golden liquid into the air via flatulent discharge thus creating the beautiful and majestic "Golden Geyser"
After a long day of work, Jana pulled the tarp out, laid it on the floor and called Bill in. She saw this as an opportunity to propose the "Golden Geyser" for their mutual enjoyment. Bill agreed without hesitation.
by David Gary David June 5, 2018
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When you cum not only in a girls mouth but also on her tits.
Vito: Hey did u hear that Tony gave Kayla an Italian geyser!

Mick: Wow, she must have had a fun cleaning job after that.

Vito: Hell yeah.
by yankees2738 January 2, 2014
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When you're changing your baby boy and he begins peeing straight up in the air while the old diaper is off and you haven't gotten the new diaper on yet.
Honey, give me a burp cloth quick, I got a Diaper Geyser going here!
by Jojomogir January 28, 2011
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When someone’s anus is open wide enough to fit mentos inside, some tosses in a few mentos and then pours in coke into the hole, thus causing a massive explosion straight out of the anus
“Mark what are those mentos for, I thought we were going to have sex”, “open up Susan, the anus geyser comes first”.
by Applebees56276 September 10, 2023
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When a large amount of content is created by an inactive account or developer.
Person A: Look! Person C just uploaded five definitions to Urban Dictionary!
Person B: Didn’t he stop making definitions last year?
Person A: I guess.
Person B: Looks like he set off a silent geyser.
Welcome back.
by ChameleonDragon April 11, 2019
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