The clip traces back to Lightning McQueen, the red race car hero of Pixar's Cars from 2006, whose signature catchphrase Ka-chow became one of the film's most quoted lines. Fans later wrote and shared it phonetically as cuchao, a spelling that spread through meme edits, short videos and soundboards where the short, energetic delivery was easy to reuse. It endures because it instantly signals speed and confidence, letting creators borrow McQueen's personality without needing a longer scene.