「屎之循環」是根據《獅子王》裡的歌曲「生命循環」（The circle of life）以及「我們是一家人」（We are one）改編，在「屎誕節特輯」中出現。
背景[]
漢基先生給自己的兒子康沃利斯·漢基講解屎在生命循環的作用，告訴他屎在生命循環的各個環節都出現，以此告訴他就算是一坨屎也有自己的使命，提升了康沃利斯的自信心。
冷知識[]
- 路易斯·普利斯（Louis Price）唱的康沃利斯·漢基的部分，但是在演職員表里寫作Lewis Price
歌詞[]
漢基先生：
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!
康沃利斯：
But how can I be that giraffe and blade of grass and a human? I don't control what they do.
漢基先生：
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.
康沃利斯：
I think I see now (deep singing voice)
So I'm the poo of the antelope, that flows onto the ground
漢基先生：
Which becomes the grass of tomorrow
康沃利斯：
Yeah
漢基先生：
Which the critters turn around
康沃利斯：
And I'm the leg of a leopard. And the wings of a hen.
漢基父子：
Which becomes dinner for the humans, and turn back to poo again.
That's the circle, the circle of poooooooooooo.
國語版歌詞[]
黃金先生：
地球上沒有地方，少的了，便便
那是生命的起始點，永遠不改變
你看大地孕育青草，鳥在天空自由飛
到頭來全都是便便，奧秘全在裡面
牛靠青草為生，最後卻變成牛排
人吃下肚消化後，排出來就是便便
唰一聲衝到下水道，順流向那大海
給浮游生物當大餐，再讓小魚飽餐一頓
大魚理直氣壯的把小魚吃掉
悠哉游到岸邊卻被大熊抓到
大熊吃得太飽大了一坨便便
而營養豐富的便便滋養了大地
羚羊吃草後要便便，長頸鹿也會便
每一坨便便，都為青草施肥
青草又被牛群吃掉，故事又重來一遍
人吃了大量的牛排，就在廁所用力便
現在你撩了嗎？便便是所有生活的終點，也是起點。
口亞心：
我只需要順其自然的，讓生命生生不息，不需要考慮太多。
黃金先生：
只要放開胸懷，跟著心跳的節奏，隨著生命起舞。這就是為什麼所有的生物能在同一個地球上生活，生生不息。那都是因為……有你啊。
口亞心：
我想我懂了
我是有尊嚴的便便，負載千古生命
黃金先生：
成為所有生命的起點
口亞心：
耶
黃金先生：
吃草的動物要便便
口亞心：
吃肉的也要便便，小雞也得便
父子：
最後宿命成為人類，美味可口的餐點，嗯……
生生不息，都是便便
參考資料[]
| 第四季歌曲 | ||
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