The croissant line became a widely shared reaction clip online, passed around as a shorthand for being dramatically startled by something minor. Short video platforms helped it spread because the phrase is instantly quotable and the accent makes it recognisable from the first second. Creators detached the audio from its original context and reused it over new scares, pranks and food mishaps, turning the croissant into a running joke. It remains popular because almost any small surprise can be reframed as a near disaster with this delivery.