一いっ巻かんの終おわり

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Meanings

1

the end of the line; the end of the road; curtains

Idiomatic expression meaning that a situation has reached its final, often disastrous, conclusion; similar to 'it's all over' or 'game over'.

彼かれが辞やめたら、このプロジェクトは一いっ巻かんの終おわりだ。
If he quits, it's the end of the line for this project.
資し金きんが尽つきて、会かい社しゃは一いっ巻かんの終おわりだった。
When the funds ran out, it was curtains for the company.