Pippi Longstocking

noun2

1. •
   A person, especially a girl or woman, with long or flamboyant red hair, especially in pigtails or parted down the middle, and prominent freckles.

   • She has threaded rags through her hair, tying it in two Pippi Longstocking braids. — 2009
2. •
   A person, especially a girl or woman, given to headstrong, wild behaviour, flights of fancy, or irrepressible optimism.

   • You’re a regular Pippi Longstocking, you know that? — 2014