gigunderstorm 

A gigantic thunderstorm. They often occur during springtime in the Midwest.

PICNIC PEOPLE: Darnit, this gigunderstorm is gonna wreck everything...

gigunderstorm by bigfluffyboo June 28, 2011

Gunderstorm

A violent and uncontrollable expulsion of the bowels that results in a rancid pile of fecal matter and partially digested food.

Sometimes you have to fart after eating Taco Bell and sometimes it turns into a full blown Gunderstorm instead.

Yo, gross, it smells likes a Gunderstorm in here!

Gunderstorm by Andy Overby April 22, 2025