A Word For That

There’s a word for that
But I don’t seem to know it
Sometimes I grow a mustache
Just so I don’t have to show it
The word for that
That someone somewhere chose
For that little dented skin
Between my upper lip and nose
There’s a word for that
What does it start with, the word for that?
I’d sound so smart if I only knew
The word for that, perhaps you do
The word you’re looking for is philtrum
There’s a word for that
It may come to me soon
It dangles down in my mouth
And is often in cartoons
The word for that
It seems like such a drag
To not know what to call
That little fleshy punching bag
Do you mean uvula?
There’s a word for that
It’s on the tip of my tongue
Well, actually underneath it
And has been since I was young
The word for that
Although I wouldn’t quote
It likely stops my tongue
From disappearing down my throat
Are you nuts, it’s frenulum