Help!
what 's the meaning of : coocol,and what expression the following song gives

FRANK: I was alone.
I had lost my way.
Until one wonderful,
Funderful day.
When I met a friend
Made up of fur and fuzz,
A friendly little friend
Who's friendly name was,
Nummy Muffin Coocol Butter
Scrappy little pal like no other.
His name is kinda long
So you can just call him muffin.
Whatever you call him
I sure as heck love him.
I love him even more than
My father or mudder,
Nummy Muffin Coocol Butter.

But then one day, unexpectedly,
Nummy Muffin Coocol Butter
Was taken from me.
The loss of that pet
Has left a really big void.
My subsequent behavior
Would even startle Freud.
When it comes to pets
There'll never be anodder like
Nummy Muffin Coocol Butter,
Nummy Muffin Coocol Butter,
Nummy Muffin Coocol Butter.


Thank you very much