The idiom "off the record" refers to something that is not meant to be recorded or documented, often because it contains sensitive or confidential information. It can also refer to something that is informal or unofficial.

The idiom "keen as mustard" is used to describe someone who is very eager or enthusiastic about something. It can also refer to a person who is skilled or capable of doing something well.

The idiom "rock the boat" means to cause excitement, disturbance or trouble. It's a figurative expression that originated from the literal meaning of rocking a boat back and forth, causing instability.

The idiom "prevention is better than cure" means that it's better to take steps to prevent something from happening rather than waiting for a problem to arise and then trying to fix it after the fact.

The idiom "uncle Tom Cobley and all" is used to refer to a group of people who are related or connected, often in a close-knit way. It can also be used to describe a collection of items or objects that are together.