Bonus points if it’s usually misused/misunderstood by the people who say it
“Agree to disagree.” No, dipshit, you’re just wrong.
I do not agree to disagree, because we’re not arguing about opinions. Your belief is simply, objectively incorrect. Or mine is, which is something that I would be willing to accept. If I were wrong, you’d be able to convince me that I’m wrong. We can keep going until one of us accepts that we didn’t have an accurate understanding of reality.
It’s always the dipshits that fall back on “Well, we will have to agree to disagree,” usually right after they’ve been presented with enough evidence to change the mind of a rational person. Fuck that, I do not agree to disagree.