go belly-up

From the tendency of fish to float upside down when they die.

go belly-up (third-person singular simple present goes belly-up, present participle going belly-up, simple past went belly-up, past participle gone belly-up) (informal)

1. To die.
2. To fail or fold; especially, to be closed or shut down, or go out of business.

   I was sorry to hear that my favorite little restaurant went belly-up.

• go bankrupt