Multiple mispellings refer to the correctly spelled word "Supercalifragilisticexpialidocious" - a nonsense word uttered by the character, Mary Poppins in the 1964 movie of the same name. The Walt Disney production of the film, starring Julie Andrews as Mary Poppins, featured the word in a song that tells how you can use it to impress others or as an exclamation when you don't know what to say. (The movie, Mary Poppins, was based on the book of the same title, written by P L Travers in 1934.)
(lyrics from the song's chorus)

Supercalifragilisticexpialidocious.
Even though the sound of it is something quite atrocious,
if you say it loud enough you'll always sound precocious.
Supercalifragilisticexpialidocious!
by The QFE March 22, 2006
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The roots of the word have been defined as follows: super- "above", cali- "beauty", fragilistic- "delicate", expiali- "to atone", and docious- "educable".
With the sum of these parts signifying roughly "Atoning for educability through delicate beauty."

Used as a nonsense word by children to express approval or to represent the longest word in English.

soo-per-kal-uh-fraj-uh-lis-tik-ek-spee-al-i-doh-shuhs

so long...lol
by zoe_choichoi May 13, 2011
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Well your probably wondering WHAT THE HECK IS DAT!? well actually it’s a very long word most of us can’t don’t know how to say but we say it anyway, why? to seem proper.
Oh you have me all Supercalifragilisticexpialidocious!”

Girl what....”
by cwallingallbwabz February 28, 2021
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Extraordinarily good; wonderful.
"the only word to characterize Kepler's discoveries was ‘Supercalifragilisticexpialidocious’"
by Sohammie April 4, 2017
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a song from the 1964 Disney musical film Mary Poppins. The song was written by the Sherman Brothers, and sung by Julie Andrews and Dick Van Dyke. It also appears in the stage show version. Because Mary Poppins was a period piece set in 1910, songs that sounded similar to songs of the period were wanted.1 The movie version finished at #36 in AFI's 100 Years...100 Songs survey of top tunes in American cinema.
👏🙌👏👌👏🙌👏🙌👏🙌👏🙌👏🙌👏🙌👏🙌👏🙌👏🙌👏🙌👏🙌Supercalifragilisticexpialidocious
by 🔴©®Y🔴 November 26, 2014
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