Guatemala Mudslide 

A sex act where a man gets on his hands and knees while the girl strokes his penis from behind. At the same time, she tosses the guy's salad. During that time, the guy lets loose a load of diarrhea, creating the "mudslide."

Note: Contaminated water in Guatemala lends itself to diarrhea production.

I gave the girl a Guatemala Mudslide. It was great, but the cleanup is a bitch.

Guatemala Mudslide by MikeandJohn February 20, 2011

guatemalan mudslide 

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.

guatemalan mudslide by Jamdog October 21, 2007

Guatemalan Mudslide 

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

Guatemalan Mudslide by Galby82 December 3, 2010