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1.
In general: to leave behind one's inhibitions or to behave in a way that is free from social limitations or any code of conduct.
(to let one's hair down)
Corrine Bailey Rae, Song:
Put your records on
Girl, put your records on, tell me your favourite song
You go ahead, let your hair down
Sapphire and faded jeans, I hope you get your dreams,
Just go ahead, let your hair down.
by Pentametrics July 27, 2008

Words related to to let one's hair down

down hair let let your hair down your