Ah, the full tongue-twister!

 "Supercalifragilisticexpialidocious" is quite the word—coined for the 1964 Mary Poppins film by the Sherman Brothers. It’s a playful, made-up term that’s supposed to mean something fantastic or extraordinary, often used when you’re at a loss for words. In the movie, it’s a song about using it to sound clever or lift your spirits. 

Here’s a list of playful, whimsical, or unusually long words similar in spirit to "supercalifragilisticexpialidocious"—some invented, some real, all with a bit of flair. I’ll explain each one briefly:

1. Floccinaucinihilipilification
   • Length: 29 letters
   • Meaning: The act of estimating something as worthless or trivial.
   • Origin: Real English word, from the 18th century, formed by stringing together Latin roots (floccus = a tuft of wool, nauci = trifle, nihil = nothing, pili = hair) plus -fication. It’s tongue-in-cheek, often used to show off linguistic chops.
   • Example: "I floccinaucinihilipilificated his opinion on pineapple pizza."
2. Hippopotomonstrosesquippedaliophobia
   • Length: 36 letters
   • Meaning: Ironically, the fear of long words.
   • Origin: A semi-invented term, blending real Greek/Latin roots (hippopotamus = river horse, monstrum = monster, sesquipedalian = a foot-and-a-half long, phobia = fear). It’s a joke word, poking fun at itself.
   • Example: "He froze with hippopotomonstrosesquippedaliophobia when I said ‘antidisestablishmentarianism.’"
3. Antidisestablishmentarianism
   • Length: 28 letters
   • Meaning: Opposition to withdrawing state support from an established church.
   • Origin: A real word from 19th-century Britain, tied to debates about the Church of England. It’s one of the longest words in standard English dictionaries.
   • Example: "Antidisestablishmentarianism sparked quite the row in Parliament."
4. Pneumonoultramicroscopicsilicovolcanoconiosis
   • Length: 45 letters
   • Meaning: A lung disease caused by inhaling fine silica dust, like from volcanic ash.
   • Origin: Coined in the 1930s by a puzzle enthusiast, it’s technically a real medical term but was created to be the longest word in English at the time. It’s rarely used outside of wordplay.
   • Example: "Miners risked pneumonoultramicroscopicsilicovolcanoconiosis in the ash clouds."
5. Bibbitybobbittyboo
   • Length: 18 letters
   • Meaning: Nonsense phrase used as a magical incantation.
   • Origin: From Disney’s Cinderella (1950), sung by the Fairy Godmother. It’s pure whimsy, meant to sound like a spell.
   • Example: "With a bibbitybobbittyboo, the pumpkin became a coach!"
6. Honorificabilitudinitatibus
   • Length: 27 letters
   • Meaning: The state of being able to achieve honors.
   • Origin: A real Latin-derived word, used by Shakespeare in Love’s Labour’s Lost. It’s a deliberately over-the-top way to say “honorableness.”
   • Example: "He strutted about, full of honorificabilitudinitatibus."

Explanation

These words fall into two camps:

• Invented/Nonsense: Like "supercalifragilisticexpialidocious" and "bibbitybobbittyboo," they’re crafted for fun, often in stories or songs, with no strict meaning beyond their vibe.
• Real but Exaggerated: Terms like "pneumonoultramicroscopicsilicovolcanoconiosis" or "floccinaucinihilipilification" have actual definitions but were stretched out for effect—either to describe something hyper-specifically or to flex linguistic creativity.

They’re all united by their absurdity or grandeur, making them perfect for showing off, confusing friends, or just having a laugh.