I've always wondered about a certain English expression:
"I could care less".
People say "I could care less" when they're implying that they don't care at all about something.
Shouldn't it be: "I couldn't care less" ?
If you said: "I could care less" , that sounds like there's room to care even less.
However if you said: "I couldn't care less", that would sound like you care so little that you couldn't possibly care any less.
What's the correct way of saying this ?