That line appears in the song in Jo's link and FF's answer.
GOODNIGHT MIDNIGHT
(Kenny Young)
Clodagh Rodgers - 1969
Do I, do I love him, do I
Midnight stands about a head above
Anyone I've ever known
Velvet eyes that hypnotise and burn me
Midnight's just an romantic fool
With nineteenth century lines
Sending tinglin' chillin' thrills that turn me on
Do I, do I love him, do I
Don't say goodnight, Midnight
You may turn into a pumpkin, don't go
We only just said hello
Oh, my ????, don't say goodnight, Midnight
La-la-la-la-la-la, la-la-la-la-la
La-la-la-la-la-la, la-la-la-la-la
Do I, do I love him, do I
Midnight has a confidential mind
His heart is in a safe
I'm still tryin' to find the combination
Go to keep my midnight free
When Midnight comes to call
Just to be my sole and sweet temptation, ooh
Do I, do I love him, do I
Don't say goodnight, Midnight
You may turn into a pumpkin, don't go
We only just said hello
Oh, my ????, don't say goodnight, Midnight
Good, good Midnight, goodnight, goodnight
Don't say goodnight, please hold me tight
Don't say goodnight, Midnight
You may turn into a pumpkin, don't go
We only just said hello
Oh, my ????, don't say goodnight, Midnight
You may turn into a pumpkin, don't go
We only just said hello
Oh, my ............FADE