> I could not disagree less. I think you mean, "I could not disagree more." What you wrote means you agree perfectly. It says that if you take the amount of

> I could not disagree less. I think you mean, "I could not disagree more." What you wrote means you agree perfectly. It says that if you take the amount of disagreement between you and your parent, there could not be less disagreement, i.e. there is zero disagreement.