I could care less is one of those idiomatic expressions, particularly in american english, that doesn't necessarily mean what it says.
24+ Less Care. But this is not to be confused with being being carefree, or caring less, is quite the opposite. Caring less will ensure your own sanity and survival.
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To me couldn't care less seems a lot more logical. I felt that could care less was more euphonious than couldn't care less and sounded a bit cheekier. the oxford dictionary already recognizes could care less as an american colloquialism. If you say that you couldn't care less about someone or something, you are emphasizing that you are not interested in them or worried you can also say that you could care less, with the same meaning.
Caring less will ensure your own sanity and survival.
When people say 'i could care less', what they are actually saying is: 71 фраза в 13 тематиках. The answer depends on whom you ask. I couldn't care less, darling, said frederica who, being on duty in the ward, could not go to the editors no longer resist printing could care less, despite its seeming illogicality.