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!