The idiom "damp squib" refers to an event, person, or idea that fails to live up to expectations or is a disappointment. It can also mean something that is uninteresting or lacks excitement.

The idiom "bits and pieces" refers to small pieces or fragments of something. It can also mean a collection of miscellaneous or diverse items.

The idiom "just in case" is used to indicate that something is being done or taken precautionarily, just in case a situation may arise where it becomes necessary. It can also mean that the action is being taken to avoid any negative consequences.

The idiom "go after" has two meanings:

• To pursue or chase someone or something.
• To confront or challenge someone or something directly.

The idiom "down and out" is used to describe someone who is in a very difficult or unfortunate situation, usually financially or economically. It can also refer to someone who is homeless, unemployed, or living in poverty.