Ka-Chow comes from Cars, the 2006 Pixar film where Lightning McQueen, voiced by Owen Wilson, uses it as his flashy catchphrase alongside his lightning bolt pose. The line became tied to McQueen's early overconfidence in the film and stayed with the character through sequels, toys and games. Short clips of the shout later spread through meme edits and soundboards, where its mix of racing pride and cartoon bravado made it a reusable punchline for wins, reveals and anyone acting like the fastest thing in the room.