“屎之循环”是根据《狮子王》里的歌曲“生命循环”（The circle of life）以及“我们是一家人”（We are one）改编，在“屎诞节特辑”中出现。
- 路易斯·普利斯（Louis Price）唱的康沃利斯·汉基的部分，但是在演职员表里写作Lewis Price
Everything that lives on earth poos in some way
And that's how the cycle happens each and everyday
Just look at the green, green grass and the birds up in the sky
It's all here because of poo and now I'll tell you why
Grass is eaten by the cattle
Which is eaten by women and men
It fuses with their body, and becomes poo again
And that poo goes through the sewer
Which is dumped into the sea
And its eaten by the plankton which becomes the fishes meal.
When that bigger fish with the poo still inside
Swims up near the shore and gets eaten alive
By a grizzly bear that poos on a dead piece of sand
So that it can spring to the life and become food for the land!
It's the poo of the antelope, the poo of the giraffe
Which falls onto to the earth, and becomes the blades of grass
The grass is eaten by the cattle, which comes out the other end
To make poo for the humans, and start all over again.
You see son? You're not an insignificant part of life. You are life!
But how can I be that giraffe and blade of grass and a human? I don't control what they do.
Just like your heart beats without you thinking about it. So too, do your giraffes and humans do what they do, without you even thinking about it! But it is all one life form. It is all you.
I think I see now (deep singing voice)
So I'm the poo of the antelope, that flows onto the ground
Which becomes the grass of tomorrow
Which the critters turn around
And I'm the leg of a leopard. And the wings of a hen.
Which becomes dinner for the humans, and turn back to poo again.
That's the circle, the circle of poooooooooooo.