Wiktionary
peachy keen
a. (context idiomatic English) Extremely good, exactly right; all right. Often used in the negative or with an ironic or sarcastic connotation to mean the opposite.
Usage examples of "peachy keen".
After all the inconvenient people StateSec disappeared in mysterious one-air car accidents, this is going to be just peachy keen when we have to go public, isn't it?