Cách sử dụng
The expression "on the tip of your tongue" means that you know something, such as the name of a person or place, but you are having trouble remembering it. It's like the word is right there at the top of your mind, but you can't quite remember it. You can use this expression when you are talking to someone and can't remember a particular word or name, but you know it's right there and you just can't think of it.