Definition
Used to indicate that a final decision has been made and no further discussion or debate is desired.
就这样了！
I've decided to quit my job, end of story, there's nothing more to say.
我决定辞职，就这样，没什么好说的了。
I've said you can't play any more games, end of, no further arguments.
我说过你不能玩游戏了，就这样，没有商量的余地。
The budget for this project has been finalized, end of discussion, we must adhere to it.
这个项目的预算已经定案，讨论到此为止，我们必须遵守。