The idiom "last but not least" is used to describe someone or something that comes second to last, but it does not mean they are inferior or unimportant. In fact, the phrase can be used to emphasize the importance of what follows, as if the final item is the most significant.

The idiom "bone to pick" is used when someone wants to argue or fight about a particular issue or topic. It suggests that the speaker has a specific complaint or grievance that they want to discuss and resolve.

The idiom "in the loop" means to be aware of something, especially a current situation or development, as it happens. It can also mean being included or involved in a group or activity.

The idiom "bang for the buck" refers to getting a lot of value or benefit for a relatively low cost or price. It suggests that the product or service being purchased is worth the money spent on it.

The idiom "breakout" refers to a sudden or unexpected event, occurrence, or development that becomes popular or well-known. It can also mean an escape from confinement or a sudden increase in something, such as sales or crime rates.