In order to correctly perform the sex move "The Comet", participants have to engage in sex on a balcony above a pool. The male partner has to convince his female partner that it would be really sexy to have gasoline all over her body, and during orgasm, he proceeds to light the gasoline (and subsequentally her body) on fire and push her off the balcony into the pool, making her look like a comet on the way down.
"There he goes, pulling The Comet" Brandon said, just as Will's partner hit the water.
by Person 37 March 4, 2008
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When a dog, eh, cleans up after himself on a carpet by scooting around with it's butt dragging.
What is left behind is called a "Dog Comet."

Exponentially worse with larger dogs.
"I don't know what my dog ate but he's leaving dog comets all over the house."
by TheKnightWhoSaidIckyIcky August 18, 2013
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A Potomac-area variant similar to a Cleveland Steamer or a Boston Pancake, but rather than dumping on the girl's tits, one should aim for the genitalia, and ideally get the feces caught in the girl's pubes. So-called because if one were a crab louse watching this unfold from said girl's pubes, this would resemble a huge brown comet streaking across the sky shooting out of the "moon" and crashing into the earth.
After the Redskins lost to the Cowboys, I realized the only thing that could cheer me up was sending a DC comet streaking across my girlfriend's vagina.
by Quen August 25, 2008
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Comet nuclei are loose collections of ice, dust and small rocky particles, and leave a trail of debris behind them. Comet droppings are the dirty piles of snow and ice compacted by plows that starts off white but eventually becomes grungier as it melts down to reveal dirty, gravel, cigerette butts, and other debris when the tempurature rises
Once the sun came out and thawed the compacted snow on the curbs, the streets were lined with comet droppings.
by Kahoki February 14, 2009
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The Red Comet is a nickname to an ace Zeon piolet in the anime cartoon "Mobile Suit Gundam". He real name is Char.
by Mike A June 17, 2004
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When a person is too lazy to brush the snow off their car. The result is a trail of snow flying off the back when they drive. Comparing to "Haley's Comet" which a trail of dust and rocks follow it.
Ben: The guy driving in front of me only brushed the snow off his windows and a small section of his windshield. He was a total lazy's comet flying down the highway.
by colts>saints February 21, 2010
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A blood comet is a substantial clot of congealed menstrual blood that forms a comet-like shape in the toilet upon ejection from the vagina. There is always a head-like structure, with some manner of tail, sometimes long enough to swirl around the circumference of the bowl.
"Guys, I made the biggest blood comet in the toilet just now."
by Dr. Moneypenny Esq. April 28, 2014
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