Are You 'Thin-Skinned' or 'Thick-Skinned'?
The skin is the largest human organ. It helps control our temperature, protects our body, and lets us feel the things we touch. It's also part of many expressions we use in normal conversations.
If someone wants to do something, you can say it's "no skin off my nose" to let them know you don't mind, because it won't affect you. For example, your friend might say, "Do you mind if I park my car in your driveway?" To which you could say, "Go ahead. It's no skin off my nose."
Some people may also say "no skin off my back."
However, if your friend almost hits your house with their car when they put it in your driveway, you could say, "You missed my house by the skin of your teeth!" This means they missed it by a very small amount, or only just succeeded.
If your friend gets angry, you could call them "thin-skinned." If someone is "thin-skinned," it means that it's easy to make them unhappy, particularly when someone criticizes them or says something they don't like.
Someone might feel more "thin-skinned" than usual if they have "skin in the game." This means they are risking something in trying to be successful. The expression was made popular by the billionaire Warren Buffett, who used it to mean that he had invested his own money in something.
So your friend with the car could also say, "Don't be angry, I had skin in the game too — my car could have been damaged as well!"
