• cat's meow, cat's pajamas, cat's whiskers, clinker, corker, lulu, peach, snitch, spanker, stem-winder, stunner, winner, wow
• clinker, crackajack, spanker, trump
• corker, he's a fine fellow, trump
• capital!, it's a wow!, that's fine!, wow!
• fine, superbly, wonderfully
• have a right royal time, have a royal time
• we had a boss time, we had a whale of a time
• to enjoy oneself immensely
• have a right royal time, have a royal time, to feel prime