Supercalifragilisticexpialidocious

[Rihanna]

Adj. a nonsense word meaning fantastic; also called supercalifragilistic

[Britney]

If you say it loud enough, youll aways sound precocious.

[PussyCat]

Its a ficticious word that you say when you want to sound precocious or when your tongue tied and need to come up with something impressive.

[Mark Zuckerberg]

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

[Tina]

a word you use when you cant think of anything else to say

[Rihanna]

supercalifragilisticexpialidocious
adjective

1. fantastic, Fantastic, very wonderful
2. A word one can use to describe something when no other words will do

[Donald Trump]

Atoning for extreme and delicate beauty while still being highly educable

[Michiko]

[A word] that makes [no sense] even in [the dictionary].

[Julian]

Extraordinarily [good]; [wonderful].

[Becky]

What to [say when] [you dont know] what to [say].