The idiom "wrap in cotton wool" means to treat someone or something with extreme care and attention, often going beyond what is necessary or appropriate. The phrase connotes a level of protection and pampering that is designed to create a sense of security and ease.

The idiom "smell a rat" means to discover or suspect something fishy or wrong about a situation or person. It is often used when someone has found out that someone else has been dishonest or deceitful.

The idiom "hand in hand" is used to describe two or more people walking together, holding hands. It can also be used metaphorically to describe a close partnership or cooperation between people or organizations.

The idiom "your guess is as good as mine" means that nobody knows something or nobody can predict the outcome of a situation. It's a way to express uncertainty and acknowledge that there is no definitive answer to a question or problem.

"Slap on the wrist" is an idiomatic expression that means to give someone a light punishment or reprimand, often as a form of discipline. It can also be used to describe a situation where someone receives little or no punishment for their actions.