The idiom "cloak and dagger" refers to a situation or event where there is deceit, secrecy, or hidden motives involved. It can also suggest that something is not as it seems on the surface and that there may be underlying conflicts or tensions at play.

The idiom "throw to the wolves" means to abandon or betray someone, usually by turning them over to an enemy or difficult situation. It can also mean to punish someone severely or to give up on a plan or project.

The idiom "done for" means that someone is completely finished or defeated. It can also mean that someone has been punished or reprimanded so severely that they are now out of business or out of the picture.

The idiom "mull over" means to think about something carefully, typically before making a decision or taking action. It can also mean to consider or contemplate something deeply.

The idiom "can of worms" refers to a situation or topic that is so complex or difficult to handle that it seems like opening a can of worms, meaning breaking the contents apart into many smaller parts. It can also refer to something that has caused chaos or trouble.