hunky-dory
Completely fine and going well, with no problems.
Hunky-dory means that everything is fine, satisfactory, or going well. When things are hunky-dory, there are no problems to worry about. You might say “everything's hunky-dory” after finishing your homework early, or your mom might ask if things are hunky-dory when she picks you up from a friend's house.
The phrase has a cheerful, old-fashioned sound to it. It suggests that things are pleasantly smooth and trouble-free. If your teacher asks how your group project is going and you say “hunky-dory,” you're signaling that your team is working well together and making good progress.
People often use hunky-dory with a touch of lightheartedness or even mild sarcasm. Someone might say “Oh sure, everything's just hunky-dory” when things actually aren't going well at all, using the cheerful-sounding phrase to highlight the contrast. But most of the time, when something is hunky-dory, it means you can relax because everything is genuinely going just fine.