The idiom "pull your socks up" is used to tell someone to stop acting childish or immature, and to behave more maturely or responsibly. It can also be used to encourage someone to take responsibility for their actions or to be more accountable for their mistakes.

The idiom "chattering classes" refers to a group of people who like to talk or gossip about various topics, often in social settings.

The phrase "method to madness" is an idiom that means there is a logical or rational explanation for someone's behavior, even if it may seem irrational or unpredictable at first glance.

"Three cheers" is an idiomatic expression that means to give a toast or raise a glass of something in honor of someone or something. It's a way to show appreciation and respect, typically at a social gathering or celebration.

The idiom "when it rains, it pours" means that when something bad happens, it often happens all at once, and in rapid succession. It suggests that a series of misfortunes or negative events tend to occur together.