The piano glissando has been a staple of cartoon scoring for decades, used by composers to mimic sliding, falling and swooping motion with a single sweep of the keys. This short descending version comes from Mickey Mouse Mixed-Up Adventures, the Disney Junior series that continued Mickey and the Roadster Racers from 2019. Short clips from modern cartoons are often lifted to soundboards because they are clean, isolated and instantly recognisable, and this gliss survives online as a reusable reaction for drops, pratfalls and cartoon chase moments in edits, memes and fan videos.