A fronde was a kind of a slingshot that Paris street urchins used to shoot fancy people with rocks as they rode their carriages through the muddy streets of Paris.

ronde类似于,某种弹弓,巴黎的顽童们用他们的弹弓"袭击",那些驾着马车穿过巴黎泥泞街道的人们

耶鲁公开课 - 欧洲文明课程节选