Definitions by Mango Nr5

Folleränna 

A Swedish term used when the stomach is acting up to the point of FUBAR. The person caught with Folleränna typically spends a lot of time on the toilet upon notice.

-Where'd Karl go?
-Oh he won't be back for a while, he caught a pretty bad Folleränna!

Folleränna by Mango Nr5 March 13, 2017