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no skin off one's back
01
used to say that something has no negative impact or consequence on someone
![no skin off {one's} [back] definition and meaning](https://cdn.langeek.co/photo/42610/original/?type=jpeg "no skin off {one's} [back] definition and meaning")
What is the origin of the idiom "no skin off one's back" and when to use it?
The idiom "no skin off one's back" is used to convey that a particular situation or action doesn't negatively affect or inconvenience someone. It originates from the idea that something causing discomfort or trouble might involve the skin on one's back. This phrase is commonly used in informal conversations to express that a situation doesn't pose a problem.
例
He thought that the construction noise would bother his neighbor, but it turned out to be no skin off their backs.
If he wants to make a mess in his own room, it's no skin off my back.
