so there!

成語所屬單字there

so there! — 慣用語

1. used by children or in a playful way to show that you are determined to keep you

1.慣用語
釋義

就是這樣！怎樣！—（小孩或玩笑口吻）表示堅決不改變主意

used by children or in a playful way to show that you are determined to keep your opinion or decision, especially after an argument.

例句

I am not going to the party, and that is my final decision, so there!