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Very similar to the Asian Thunderstorm. When a guy cums on a girls face and then goes lay a fart in her mouth, but instead shits in her mouth.
While eating hot wings and drinking cheap beer, Janet was begging me to give her an Asian Thunderstorm. Later that night I did, but she wound up with a Guatemalan Mudslide instead.
by Jamdog October 05, 2007
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The act of having sex, while releasing ones bolus
Josh was having a dump while his girlfriend was riding him, thus Josh gave his girlfriend a Guatemalan Mudslide
by Galby82 December 01, 2010
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