take someone's name in vain
成語所屬單字vain
take someone's name in vain — 慣用語
1. To use a person's name in a way that shows a lack of respect, often in a joking
1.慣用語
釋義
輕蔑地提到某人
To use a person's name in a way that shows a lack of respect, often in a joking or critical manner.
例句
The children teased each other by taking the teacher's name in vain when she left the room.
My grandfather joked that the neighbours were taking his name in vain whenever they mentioned his old car.