pneumonoultramicroscopicsilicovolcanoconiosis 

How you make your worst enemy get a F- in spelling.

Person 1: Please spell pneumonoultramicroscopicsilicovolcanoconiosis
Person 2:N-E-M-O-N-O-U-L-T-R-ARRRRRRRRRRRRRRRRGGGGGGGGGGGGGGGGHHHHHHH BLEURGH
Person 1: It worked!

pneumonoultramicroscopicsilicovolcanoconiosis by SiliconOxygen September 17, 2018

pneumonoultramicroscopicsilicovolcanoconiosis 

a lung disease, caused by breathing very fine silicate or quartz dust.

Bitch: damn, you got pneumonoultramicroscopicsilicovolcanoconiosis?
Nigga: yeah!

pneumonoultramicroscopicsilicovolcanoconiosis by DemStingBees November 9, 2018

pneumonoultramicroscopicsilicovolcanoconiosis 

A lung disease contracted by the inhalation of very fine silica particles, especially from a volcano.

The teacher told me to write pneumonoultramicroscopicsilicovolcanoconiosis and I left the class.

pneumonoultramicroscopicsilicovolcanoconiosis by EmphasizedWords November 19, 2018

Pneumonoultramicroscopicsilicovolcanoconiosis 

The longest word, meaning a lung disease you can get from inhaling very fine silica particles from a volcano.

"Poor guy, he got pneumonoultramicroscopicsilicovolcanoconiosis."

Pneumonoultramicroscopicsilicovolcanoconiosis by A PINEMAN December 20, 2018

pneumonoultramicroscopicsilicovolcanoconiosis 

An invented long word said to mean a lung disease caused by inhaling very fine ash and sand dust.

Longest word in the English language with 45 letters

Daniel: I learnt how to spell antidisestablishmentarianism!
Felix: Nice. Maybe you might learn pneumonoultramicroscopicsilicovolcanoconiosis like me!

pneumonoultramicroscopicsilicovolcanoconiosis by Arabic Name December 31, 2018

Pneumonoultramicroscopicsilicovolcanoconiosis 

A lung disease, often caught by inhalation of very small particles.

"Oh no! You seem to have caught pneumonoultramicroscopicsilicovolcanoconiosis!"

Pneumonoultramicroscopicsilicovolcanoconiosis by You're screwed January 8, 2019

Pneumonoultramicroscopicsilicovolcanoconiosis 

A disease where someone inhales volcanic ash.

Hey, I saw you near a volcano last night! Did you get pneumonoultramicroscopicsilicovolcanoconiosis?

Pneumonoultramicroscopicsilicovolcanoconiosis by Perler Bead Master February 2, 2019