A fond relative to the dirty sanchez, Cleveland steamers, and our multicultural favorite, the butthole bindi, a montezuma's mustache only works occasionally, thus it is much more special. When faced with a case of diarrhea, one gently crouches over his or her lover and lets it rip.

When you eat dirt for the first time and leave your family to build a shack in the woods

The diahhrea version of a dirty sanchez. Having someone with loose bowels create a thin line above the upper lip.