The clip comes from Croissant de Triomphe, a Mickey Mouse cartoon short released in 2013, and it captures the kind of bright, exaggerated vehicle noise that defined classic cartoon sound design. Once lifted from the episode, it began circulating on soundboards where short, instantly readable cartoon chase sounds are shared for memes and edits. It has stayed in use because it needs no context to work: one toot instantly suggests movement, mischief and a character in a hurry, making it a handy shorthand for comic timing.