gongshow

(noun) a chaotic and disastrous event

Example Sentence:

A: How was your party?
B: It was such a gongshow! My stuff was stolen, my house was destroyed, and the police came!

The carefully planned presentation turned into a gongshow when the student forgot her notes.

Media:

Similar idioms:

1. all nighter
2. hot under the collar
3. put one’s foot in one’s mouth
4. train wreck
5. go over