You don`t say! - used to show surprise at what is said "You don`t say", he said when he heard about the accident on the highway. You got me there. - I don't know the answer to your question. "You got me there. What do you think the answer is?" You said it!/You can say that again! - that's true, you're right (used to show strong agreement with what another person has said) "You can say that again," I answered when the woman mentioned how hot it was out in the sun. You scratch my back and I'll scratch yours. - if you will do me a.
