dociousaliexpilisticfragicalirepus
supercalifragilisticexpialidocious
you can say it backwards dociousaliexpilisticfragicalirepus
you can say it backwards dociousaliexpilisticfragicalirepus
used as a nonsense word by children to express approval or to represent the longest word in English dociousaliexpilisticfragicalirepus