for the first part of the song, the following 4 chords are repeated
F5  Ab5  C#5  Bb5

In the morning I set sail on a whalebone 
The gale force winds made the sky grow 
I was far out in the ocean 
I cut the roof of my mouth on the potion 
And down down down went the femur 
I let my backbone slide into the ether 
Laying low in a tropical hideout 
If anyone finds out, I'll turn their lights out 

then, it breaks down:
F5  Ab5  C#5  Bb5 [x2]

F5 C#5
F5 C5 C#5 E5

rap part:
F5 C#5
F5 C5 C#5 E5


after the rap, it goes back to 
F5  Ab5  C#5  Bb5

In the evening I arrived on a wishbone 
So I wished all the stars would go home 
And one was a dog with it's tail drawn 
It laughed as it shed now when it's long gone 
I remember the flavour 
But I made a choice to stay here 
Laying low in a tropical hideout 
If anyone finds out, I'll turn their lights out