"Could care less" "Couldnt care less" The first implies you actually care, it means the literal opposite of what you think it means when you say that. COULD NOT care less, means you have NO cares to give. THAT is when you 'do not care, at all' - fuck i dont know what i was watching yesterday but i heard a plural of 'could care less' and it makes even less sense than the singular. Get it right ffs...