Hunky-dory for short

• Thumbs-up letters
• Astronaut's call
• Spoken thumbs-up
• Working just fine
• Roger's cousin
• "All systems go"
• NASA affirmative: Hyph
• NASA "thumbs-up": Hyph
• NASA's "Go"

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