📖 Meaning
An allusion to lightning that flashes without bringing rain. It originates from a myth in which the Eastern King plays a game of throwing arrows into a pot with a jade maiden, and Heaven's laughter produces bright fire in the sky. The idiom is used in classical literature to describe the phenomenon of lightning without rain.
📜 Origin Story
The idiom derives from the ancient text Shen Yi Jing (《神异经·东荒经》), which describes how the Eastern King (东王公) dwells in a great stone chamber in the mountains of the Eastern Wilderness. He constantly plays the game of touhu—throwing arrows into a pot—with a jade maiden, casting twelve hundred arrows each round. When an arrow enters the pot but fails to come back out, or comes out but is not caught, Heaven laughs. The Western Jin scholar Zhang Hua (张华) annotated that Heaven's laughter means fire streams from Heaven's mouth, creating bright illumination—hence lightning without rain is Heaven laughing.
💡 Example Usage
夏日傍晚偶有投壶电笑的现象，只见闪电不闻雨声。
On summer evenings, one occasionally sees the phenomenon of lightning without rain—only flashes in the sky, with no sound of rainfall.
🏷️ Category
➕ Similar Idioms
➖ Opposite Idioms
🔤 Quick Facts
- Chinese: 投壶电笑
- Pinyin: tóu hú diàn xiào
- Literal Translation: throw, pot, lightning, laugh
- Category: Philosophy
- Characters: 4