go bung

1. To die. Primarily heard in Australia, New Zealand. If people start to go bung, then we've got a real health crisis on our hands. Ew, you saw a mouse? Well, I hope it suddenly goes bung so I don't have to deal with it! No, I am absolutely not eating that. I'd rather go bung than eat frog's legs!

2. To fall apart or fail, especially financially. Primarily heard in Australia, New Zealand. Our business will go bung if we don't make some big sales this quarter. I'm not surprised that place went bung—I'd heard that the CEO was embezzling money. Your company will go bung if you keep spending so much on a lavish office space.

go bung

1 die. 2 fail or go bankrupt. Australian & New Zealand informal

In this sense bung comes from Yagara, an extinct Aboriginal language.

2 1951 J. Devanny Travel in North Queensland ‘The stations would go bung without the Abos’, one of the missionaries told me.