ultramicroscopicsilicovolcanoconiosis 

a disease of the lungs due to the inhalation of volcanic ash and one long-ass fockin word.

Man 1:*cough*
Man 2: "Uh Oh, sounds like you've got a case of ultramicroscopicsilicovolcanoconiosis."

ultramicroscopicsilicovolcanoconiosis by darren smokie October 17, 2006

ultramicroscopicsilicavolcanocroniosis

A scientifically defined term for an ancient sickness when one
would accidentally ingest large amounts of silica. This leads to small, sharp, many cuts in every oraphace as it travels through your blood stream. In layman's terms, you bleed from everywhere.

this diahrhea feels so bad it's like I have ultramicroscopicsilicavolcanocroniosis

ultramicroscopicsilicavolcanocroniosis by ArtemisBleu February 18, 2008

pneumono ultramicroscopicsilicovolcanokoniosis 

It is a respiratory disease where you breath in volcanic dust or other fine silicon dust. Also a really long word you can say to impress your friends, and make you seem smart.

Pranda got pneumono ultramicroscopicsilicovolcanokoniosis after he climbed into an active volcan and took a deep breath.

pneumono ultramicroscopicsilicovolcanokoniosis by Vossy May 30, 2006