Chinese fire drill

Etymology
Perhaps from the WWI era, from the British practice of using Chinese as a slur; now used only as a festive exclamation.

Noun

 * 1)  A prank performed while stopped in a car at a red light, and where each passenger, including the driver, shouts "Chinese fire drill", exits the vehicle, runs at least once around it, then re-enters, each taking a different seat.
 * 2)  A silly, pointless exercise.

Translations

 * Spanish: simulacro de incendio de China