Rapunzel. Oh, and it's 'let down your hair' not let's down your hair
The expression ''let your hair down'' means be free and bold.
Yes, its awesome because then for a girl, you can flip it (if you have long hair) and dudes, well, idk :D i am a girl
Let your Hair Down: to behave freely and naturally. Origin - This expression began in the 1800s when many women wore their long hair pinned up in public and only let it down in private, especially...
Rapunzel