Balloon Knot

Is it coming? 
I’ve said this before 
When will it come? 
I've said that before
Before what?
You stinking balloon knot!

Who said that?
Am I possessed? 
Of course you are!
I’m in your vest 
Hold on there spook
You're  wrong on that
 
I don’t wear a vest
But I do wear a hat
I’m in your head
It’s in your hat

So my spook what do you say? 
It is coming... 

You've never said that before