Let one’s hair down

The phrase let one’s hair down dates back to women’s grooming practices, four hundred years ago. We will examine the meaning of the idiom let one’s hair down, where it comes from and some examples of its use in sentences.To let one’s hair down means to behave in an uninhibited fashion, to behave freely. The […]
from Grammarist
http://grammarist.com/idiom/let-ones-hair-down/