1 B2 慣用的 カジュアル
会社、計画、事業などが完全に失敗し、続けられなくなる。
"The restaurant went belly up after just six months because of poor management."
“
The company went belly up, leaving hundreds of workers without jobs.
— Common journalistic usage, widely attested in publications such as The New York Times and The Guardian.
分離不可