Top definition
A song from Mary Poppins
People also say it when something is brilliant
Or just to droop with sarcasm
Or just to be hell annoying
Randomer:Hey Vivian
Me:What
Randomer:SUPERCAILFRAGALISTICEXPIALIDOCIOUS
Me:*dies*

Me: Guess what I just got brand new shoes and they look supercailfragalisticexpilalidocoius!
Randomer:......

Me:*breaks mummehs favourite vase*well that's supercailfragalisticexpialidocouis
by VivianRose February 21, 2015
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