The idiom "sitting duck" refers to someone who is easy to target or attack, often because they are not aware of their surroundings or do not take any precautions to protect themselves. It can also refer to someone who is vulnerable or at risk due to their position or circumstances.

The idiom "at stake" means that there is a risk or danger involved, especially in a situation where the outcome is uncertain. It can also imply a sense of importance or urgency, as if something significant is at risk of being lost or damaged.

The idiom "heads will roll" is a metaphorical expression used to indicate that someone or something will suffer severe consequences, often involving violence or destruction. It suggests that the people or things involved will be completely wiped out or eliminated.

The idiom "have never had it so good" means that someone is currently experiencing a period of great happiness, success, or prosperity. It can also imply that things have been going downhill in the past and are now turning around for the better.

The idiom "button your lip" means to keep quiet or be silent. It is a way of telling someone to stop talking or to control their words.