Lyrics:

When I was just a wee little lad full of health and joy
My father homeward came one night and gave to me a toy
A wonder to behold it was, with many colors bright
And the moment I laid eyes on it, it became my heart's delight

It went zip when it moved, bop when it stopped
Whirr when it stood still, I never knew just what it was
And I guess I never will

The first time that I picked it up I had a big surprise
For right on its bottom were two big button that looked like big green eyes
I first pushed one and then the other, then I twisted its lid
And when I set it down again here is what it did

It went zip when it moved, bop when it stopped
Whirr when it stood still, I never knew just what it was
And I guess I never will

It first marched left, then marched right, then marched under a chair
And when I looked where it had gone it wasn't even there
I started to cry and my daddy laughed for he knew that I would find
When I turned around my marvelous toy chugging from behind

It went zip when it moved, bop when it stopped
Whirr when it stood still, I never knew just what it was
And I guess I never will

Now the years have gone by too quickly it seems, I have my own little boy
And yesterday I gave to him my marvelous little toy
His eyes nearly popped right out of his head, he gave a squeal of glee
Neither one of us knows just what it is but he loves it just like me

It still goes zip when it moves, bop when it stops
And whirr when it stands still, I never knew just what it was
And I guess I never will

I never knew just what it was
And I guess I never will