英美俚俗语【143】let one’s hair down 毫无拘束

let one’s hair down

[俗]轻松一下；随随便便；毫无拘束

I hardly let my hair down in he presence of my would-be father-in-law.

在我未来的岳父面前我总是很拘束。

注解：

to let one’s hair down系指拿下发针，使头发垂落肩头，喻指除去表面装饰，使自己无拘无束、轻松、自然。