Which phrase do you use?

I could not care less.

I could not care less. Either way is meant to mean the same thing.

I could care less is better.

How do you figure @KRD?

“I could not care less.” “I could care less” is sarcastic.

I could not care less = there’s literally no more care left.
I could care less = the care meter is at ten (from hundred), so there a little bit care left.

Don’t Let the Good Life Pass You By.

Good explanation @rebbel.
People who say “I could care less” actually mean “I could not care less.”

@Dutchess_III I thank you.

I don’t use either one. I say “I don’t care.” And I don’t say it much.

I remember when “I could care less” came into common use, at least in my area (eastern Mass.). I was in high school. I had to ask the girl in front of me in homeroom what “I could care less” meant because it didn’t make any sense to me. I also disliked the snarky way it was usually spoken. So I didn’t pick it up at all.

“Ist mir wurst.”
“Juckt mich nicht.”
“Das interessiert mich einen Scheiß.”

I could care less.

I could care less means you care.

I could not case less means you do not care.

This isn’t hard but it’s about the fifth time I have seen it asked online.

Translated Ragingloli ‘s comments into English:
“I do not care.”
“I do not care.”
“I don’t give a shit.”

i simply state that I don’t care or I am not interested .