Astronaut affirmative

• "Just ducky"
• Jim-dandy: Hyph
• Astronaut's "Fine!"
• NASA's "all systems gO"
• Perfect-launching expression
• Fine, mod style
• Intensive affirmative
• Perfectly good, to astronauts: Hyph
• "Come and play, everything's ___" ("Sesame Street" theme lyric): Hyph

Wiktionary Word definitions in Wiktionary
a. (alternative spelling of A-okay English)