The idiom "lost on" means to be confused, puzzled or unable to understand something. It can also mean to take no notice of something or not care about it.

The idiom "go with the flow" means to follow a course of action that is natural or easier, rather than trying to resist it or change it. It can also mean being willing and flexible in adapting to changes and events that are outside one's control.

The idiom "black hole" is used to describe a state of complete darkness or emptiness, often metaphorically. It can also refer to a person who is difficult to communicate with or understand due to their lack of responsiveness or unfriendliness.

The idiom "dollars to donuts" means that something is true or probable with a high degree of certainty. It is used to express confidence in an opinion or prediction.

The idiom "all ears" is used to describe someone who is actively listening and fully engaged in what they are hearing. It can be used in both literal and figurative contexts, and its usage can vary depending on the situation.