Idioms

To ask for the moon: To make unreasonable demands for things or to wish something impossible to achieve or to obtain.
Hold the fort: You make care of a place when the person normally in charge is away
Under the table: Is a phrase used to described secretive behaviour often suggesting corruption or illegality
To horse around: Like goof off
When someone has chickened out fo something: they have failed to do something ot they haven't tried to do it because they were afraid.
When you say is a wise old owl you mean they are very experienced in life
A night owl is someone who stays up late into the night
When you say someone is in safe hands you mean they are being cared for someone who is confident and skilled
A safe pair of hands:is a similar expression it referes to somone who cabn be a good job avoiding mistakes
If someone tells you to hold your tongue it means they want you to stop talking because the don't like what you are saying
If a situation is black and white it means you have a clear opinion about you can easily see what you know what is right or wrong.
Money doesn't grow on trees: means you must not spend to much money as there is a limited amount of it.
Money is not object: means that you have a lot of money available to spend.
Let the cheaps fall where they may: means to allow things to happen no matter what the consequences are.
When you say something is as cheap as chips you mean it is very cheap.
If you are chasing your tail you are very busy a lot of things but not achieving very much.