Omnishambles

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

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

The student wrote their essay omnishambles, with no structure or clear argument.

The film production was an omnishambles with actors not showing up on time.

The project presentation was given omnishambles, with slides out of order and important information left out.

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

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