excellent. This is a jim-dandy knife. Where'd you get it?Tom: I'll meet you at six, OK? Charlie: That'll be jim-dandy.
fine and dandy
All right, excellent, as in What you're proposing is fine and dandy with the rest of us. This redundant colloquialism ( fine and dandy both mean "excellent") today is more often used sarcastically in the sense of "not all right" or "bad," as in You don't want to play bridge? Fine and dandy, you've left me without a partner.