It looks like the phrase is not a known title, author, or standard phrase in English, or in major Romance, Slavic, or Germanic languages. It does not correspond to any recognized book, film, academic paper, or cultural product indexed in major databases (WorldCat, Google Books, JSTOR, etc.) as of my current knowledge.
Usporedite Pipi s njezinim susjedima. Dok su Tomi i Anika "uzorna" djeca koja idu u školu i slušaju roditelje, Pipi je divlja i neobuzdana. Pippi Longstocking Themes - SuperSummary pipi duga carapa lektira
In the canon of children’s literature, few characters have caused as much delightful chaos as (Pippi Longstocking). For generations of students approaching their school reading list ( lektira ), Astrid Lindgren’s irrepressible heroine has been a gateway drug into the joy of reading. It looks like the phrase is not a