I wish I'd said that

I wish I'd said that.

a comment of praise or admiration for someone's clever remark. Mary: The weed of crime bears bitter fruit. Sue: I wish I'd said that. Mary: I wish I'd said it first. John: Tom is simply not able to see through the airy persiflage of Mary's prolix declamation. Jane: I wish I'd said that. John: I'm sorry I did.
See also: said, wish