Must be your Breath, I'm breathing in,
Must be bad cos now I feel-
Out of my mind,
Your breath smells like my behind.
It's not my time to wonder why-
Your teeth are not white,
But covered with decay.
Reeks when you're here and lingers when you go away.
No one likes this,
Remember that.
Everyone knows exactly where you're at.

Don't let the days go by,
(Use)Listerine, Listerine.
When you're alone,
You need to brush after you dine,
When you're done with the pie,
And your veal.
Brush after every meal,
Why must you put everyone through these ordeals.
Your Breath is bad.
I avoid seeing your face.
Brush some more;
Here use my toothpaste.

Don't let the days go by.
Should have been harder on you.
You could have brushed if you wanted to.
Brush and floss again at three.
Brush in circles, it's so easy.

(Use)Listerine, Listerine.
Don't let the days go by.
Listerine.
Don't let the days go by.
Listerine. Listerine.
Listerine. Listerine.
And you rinse again.
And you rinse again.
So that all may see.

I'll go to the store
And buy you some Crest
And some floss for you to possess.
It is so clear and simple and plain
You'll smell so fine
You'll get plenty of dames.
Don't let the days go by.
Should have been harder on you.
(Use) Listerine, Listerine.
Listerine, Listerine.