double Dutch
noun
mass noun
1
- Brit. informal language that is impossible to understand; gibberish〈英, 非正式〉令人费解的话（或文字）：
instructions written in double Dutch.
难以理解的使用说明。
2
- N. Amer. a jumping game played with two skipping ropes swung in opposite directions so that they cross rhythmically〈北美〉跳双绳游戏（将两根绳子朝相反方向挥舞成圆圈并有节奏地从上跳过去）。