Chorus
I’m a sesquipedalian, I’m a sesquipedalian, I’m a sesquipedalian
That’s person who uses big words 

I know a great big word for a tiny Hawaiian fish
And the spiny brown sea urchin is its favorite dish
And his name is Humuhumunukunukuapuaa, Humuhumunukunukuapuaa, Humuhumunukunukuapuaa
A tiny Hawaiian fish. 

Repeat Chorus

I know a word that means that a word sounds like just like what it is
Like tic-toc, or click or plop or splat or splash or fizz
The word is onomatopoeia, onomatopoeia, onomatopoeia
A word that sounds like what it is.

I know a word that’s so darn long it’s hardly ever used.
And when I try to say it, I always get confused
And the word is antidisestablishmentaranism , antidisestablishmentaranism, antidisestablishmentaranism
And I don’t know what it means, but 

Repeat Chorus