Supercalifragilisticexpialidocious!!!
Kaede Higuchi on Dec. 7, 2007
This happened to me recently with one of my babysitting charges. She just wouldn't stop saying Supercalifragilisticexpialidocious, and it got to the point in which I could pronounce and write it correctly @_@
Zippo Prower at 4:00PM, Dec. 8, 2007
Supercalifragilisticexpialidocious! The word must use most of the letters in the alphabet, it's so long!