Jiminy Cricket is a character from a famous Disney movie called Pinocchio. He is a tiny cricket who becomes Pinocchio's conscience and guides him to make good decisions. This means that whenever Pinocchio is faced with a choice between right and wrong, Jiminy Cricket reminds him of what is right and encourages him to do it.
Jiminy Cricket is like your own little voice inside your head that tells you what is right and wrong. It's kind of like having a tiny friend who helps you do the right thing. He reminds you to be kind, to share your toys, and to always be truthful.
In the movie, Jiminy Cricket sings a song called "When You Wish Upon a Star" that reminds us to always have hope and that dreams can come true. So, just like Pinocchio, we should always listen to Jiminy Cricket and do the right thing, because that's what makes us good people.