Omnishambles

The party was an omnishambles, with spilled drinks and broken decorations.

The airline's handling of a major storm led to an omnishambles.

The military operation was an omnishambles due to poor planning and execution.

He's an omnishambles of a cook, every dish he makes is a disaster.

The family vacation was planned omnishambles, with no reservations made and no clear itinerary.

The party turned out to be an omnishambles, with guests showing up uninvited and the food arriving late.