Idiom of the day: Foam at the mouth. Meaning: To be extremely angry. Example: She was almost foaming at the mouth when she heard about the cost of the car repairs. Origin: Like many other idioms, it may have first been used by William Shakespeare.
“Let your hair down” means “to relax and do what you want”. Example: It’s been such a hard week at work. Should we all go out tonight and let our hair down a bit? Origin: This phrase originated in the century, when women were expected to wear.