Meaning:
When a person says ‘you can say that again,’ it means they agree with what was just said.
Examples:
- What a great guy. You can say that again, son.
- See if you can say that again without laughing.
- Well, you can say that again. What I did was... unforgivable.
- Well, you can say that again.
- No, you can say that again.
- Aye, you can say that again.
- Yeah, you can say that again.
- Oh, you can say that again.