copacetic \koh-puh-SET-ik\ adjective
Meaning: very satisfactory

It was little wonder Julie lashed out at the airhostess. Her entire life she'd been telling people things were copacetic: her haircuts, her food at restaurants, the way people trod on her feet on the bus. She'd pacified herself right into an aneurysm, for which she was now having to fly one thousand miles for an operation. She wasn't sure if the heavy beating in her head right now was the little clot preparing to explode and kill them then and there, but she did know that the coffee she'd just been given was awful, the cup cracked, and her skirt ruined. Enough was enough.
The air hostess was about to tell her passenger that if she shouted then it would be harassment, but she thought better of it, as she met Julie's steely gaze head on. A silver-dagger torrent was waiting behind those corneas, just waiting for some idiot to unleash its fury.