When you are having anal sex with a Peruvian woman without giving her a proper cleaning prior; when you pull out she has major colon blow all over your Johnson.
Last night I was banging Guadalupe and she had a Machu Picchu Mudslide all over the place.....It was nasty.
by sewer_brain_69 January 27, 2010
Get the Machu Picchu Mudslidemug.