The idiom "the squeaky wheel gets the grease" means that if something is causing a problem or difficulty, it will be addressed and fixed first, usually because it is the most visible or noticeable.

The idiom "double whammy" means receiving two negative things or situations one after another. It can also refer to a situation where the outcome is even worse than expected, causing a sense of shock or disappointment.

The idiom "salad days" refers to the early, carefree days of youth. It is a time when people are full of energy, eager to experience new things and enjoy life to the fullest.

The idiom "cry wolf" means to make a false accusation or warning, often as a form of manipulation or deception. It is derived from the fable about a shepherd who repeatedly cries "wolf!" to scare off his flock of sheep, but eventually no one believes him when he truly calls out for help.

The idiom "when in Rome, do as the Romans" means to follow the customs, traditions, or behavior of a particular place or culture when you are there. It suggests that one should adapt to the local norms and avoid imposing their own values or ways on others.