Carl Wheezer is Jimmy Neutron's llama loving best friend in The Adventures of Jimmy Neutron, Boy Genius, the Nickelodeon series that ran from 2002 to 2006 following the 2001 film. Voiced by Rob Paulsen, Carl became a meme favorite for his nasally voice, allergies and earnest obsessions. Clips of his exaggerated food pronunciations, including croissant, were widely reshared on Vine, YouTube and TikTok in the 2010s, turning a throwaway line delivery into a standalone reaction sound that still signals goofy nostalgia for early 2000s cartoons.