a type of small spinning top (= a toy that spins round) that turns over and spins on its thin vertical part when it is spun fast

The tippy top has fascinated physicists for years. 多年来，倒立陀螺一直让物理学家们十分着迷。

A tippe top is a spinning top that flips upside down when spun. 倒立陀螺是一种在旋转的时候会翻转过来的陀螺。

the top of something

Pour the remaining egg mixture to the tippy top of the dish. 将剩余的鸡蛋混合物倒入盘子的顶部。

In Paris we visited the Louvre, and went to the tippy top of the Eiffel Tower. 在巴黎，我们参观了卢浮宫，还登上了埃菲尔铁塔的尖顶。