The idiom "jump the gun" means to take action prematurely or before it's necessary. It is a figurative expression that implies acting without proper planning, consideration, or preparation.

The idiom "bee in bonnet" refers to someone who is overly agitated or upset about something, often to the point of obsession. This person may be fixated on a particular issue and unwilling to listen to other perspectives or reason with others.

The idiom "charley horse" refers to a sudden, intense pain in the lower back that can make it difficult to move or stand for extended periods of time. It is often used to describe a sudden injury or strain, but can also be used more generally to refer to any type of low back pain.

The idiom "out of sight, out of mind" means that if something or someone is not visible to you, you will forget about it or pay less attention to it. It is a common expression that suggests that we tend to forget things that are hidden from our view.

"Play by ear" is an idiom that means to learn or perform something without prior preparation or instruction, relying instead on one's own experience and intuition. It suggests a flexible and adaptable approach, rather than following strict rules or guidelines.