The balloon went pop.

气球砰的一声爆了。

《牛津词典》

Put a balloon on the tailpipe of a someone's car so it will pop when they start their car.

在别人的汽车排气管里放个气球，车发动时发出爆炸声。

youdao

It might seem faster to ask Charlie not to pop "the red balloon," but if you want him matching colors with aplomb, best rephrase with, "I mean, the balloon that is red."

当你想说：“查理，不要去砸那个红色气球的时候”，换成：“哦，我说，那个气球是红色的。”相信我，他会更早的认识颜色。

youdao

Or at least a little pin that extends so I can pop the balloon of other heads that get too close and crowd me (because my robot head needs his space, too).

FORBES: Is The Future of Telecommuting Your Floating Robot Head?

Koons is best known for his larger-than-life sculptures of balloon animals and other objects that he transforms into pop art.

FORBES: Jeff Koons: The King Of Kitsch

But stories like that don't just pop in front of you like a rogue balloon.

NPR: A Boy, A Balloon And A Lot Of Hot Air