positive no

A device used by New Yorkers, who instinctively value opposition and contradiction, to underline their agreement with another person's statement. Instead of the conventional "Oh, I agree," or "Yes, you're right," the New Yorker begins with "No, I agree," or "No, you're right."

Xiomara: "Gray's Papaya makes a better hot dog than anyone can at home."
Shlomo: (using the Positive No) "No, you're absolutely right."