This meme sound is associated with Carl Wheezer, a character from Jimmy Neutron, and spread widely through edited clips and reposts on YouTube, TikTok and meme pages. The croissant variation became popular because Carl's voice and face already fit exaggerated, awkward humor. Online, it often appears in the same goofy meme space as bruh and other short reaction sounds. Its staying power comes from the mix of recognizable cartoon nostalgia, strange vocal delivery and easy use as a quick punchline.