This is the title of a book for children that in its Galician version is called "A Toupiña who wanted to know that he would fix here aquilo na head" and that one day we took Lucas and I from the library.
Well, it was a hilarious story for my son. Every night you had to read it again and again and laughed as if it were the first time. To my surprise I found a blog that has made a video of the book.
Here is the story about a bump that one day woke up with a crap in the head:
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