Omnishambles

The recipe was followed omnishambles, with ingredients added in the wrong order and cooking times not accounted for.

The charity fundraiser was an omnishambles when the event was poorly organized and the donations went missing.

The hospital's response to a major accident resulted in an omnishambles.

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

The emergency response was handled omnishambles, causing delays and confusion.