Final answer:
The phrase 'our little secret' implies that there is information or a situation that should be kept confidential between the speaker and the person they are speaking to.
Step-by-step explanation:
In the context provided, the phrase 'our little secret' implies that there is information or a situation that should be kept confidential between the speaker and the person they are speaking to. It suggests that whatever is being referred to is not meant to be shared with others.
For example, in the first quote, Wednesday uses this phrase to indicate that there is something important that they will share only with the listener, and that it should not be revealed to anyone else.
The phrase 'our little secret' is commonly used in English to describe confidential information that should not be shared with others.