Gullfoss og Geysir

Etymology
Gullfoss and Geysir are two major natural attractions in Iceland that are a part of the Golden Circle, a popular tourist route.

Gullfoss is a large waterfall, so in the second definition it stands for severe diarrhea, and Geysir is a, so in the second definition it stands for severe vomiting.

Noun

 * 1) Gullfoss and Geysir two nature attractions commonly visited in tandem
 * 2)  gastroenteritis with both diarrhea and vomiting