Help for idioms! Seeking uncommon idioms! The more obscure, the better. It's best to bring pronunciation and explanation

Okay, I can provide some uncommon idioms as follows: 1. Needles hidden in cotton wool: It is used to describe a person's heart that is firm and very delicate. It is as soft as cotton but as sharp as needles. 2. To keep a secret: to keep a secret of a major event. 3. Insignificant: of so little significance or value that it is not worth mentioning. 4. Unique: It is used to describe techniques and methods that are very ingenious. 5. Getting off the bus at the beginning: It is a metaphor for doing a good job at the beginning of a new position. 6. Getting off the bus at the beginning: It is a metaphor for doing a good job at the beginning of a new position. 7. Getting off the bus at the beginning: It is a metaphor for doing a good job at the beginning of a new position. 8. Getting off the bus at the beginning: It is a metaphor for doing a good job at the beginning of a new position. 9. Getting off the bus at the beginning: It is a metaphor for doing a good job at the beginning of a new position. Getting off the bus at the beginning: This is a metaphor for doing a good job at the beginning of a new position. [lzhé zhén] He kept it a secret. When he got off the bus, he said, Getting off the bus: It's like doing a good job at the beginning of a new position. I hope these rare idioms can meet your requirements!