There are a few people who think there's potentially a Yiddish aspect to "could care less". I don't know if this is accepted or not. "In Defense of I Could Ca

There are a few people who think there's potentially a Yiddish aspect to "could care less". I don't know if this is accepted or not. "In Defense of I Could Care Less": https://slate.com/human-interest/2014/03/why-i-could-care-less-is-not-as-irrational-or-ungrammatical-as-you-might-think.html https://slate.com/human-interest/2014/03/why-i-could-care-le... > A number of language writers have suggested that “could care less” has a sarcastic reading, conveying something like “Ha! As if there were something in the world I could care less about.” There are some American Yiddish-inflected phrases that work this way, like “I should be so lucky!” (meaning “there’s no way I’m ever gonna be that lucky”) or “I should care!” (why should I care?). Even if “could care less” didn’t originate from a sarcastic intent, it matches up well enough with these other forms in the language to help give it staying power. "Caring About Whether You Couldn’t Care Less": https://www.dictionary.com/e/could-care-less/ https://www.dictionary.com/e/could-care-less/ I particularly like this argument from this second link: > The argument of logic falls apart when you consider the fact that both these phrases are idioms. In English, along with other languages, idioms aren’t required to follow logic, and to point out the lack of logic in one idiom and not all idioms is…illogical. Take the expression “head over heels,” which makes far less sense than “heels over head” when you think about the physics of a somersault. It turns out “heels over head” entered English around 1400, over 250 years before “head over heels,” however, the “logical” version of this idiom hasn’t been in popular usage since the late Victorian era.