The Flying Nimbus, known as Kinto'un in Japanese, is the magical yellow cloud Goku rides in Dragon Ball, first appearing in the original manga and anime series created by Akira Toriyama. Only the pure of heart can ride it, which is why it became a symbol of Goku's innocence and heroism. The sound is now reused online in anime edits, gaming clips, and memes whenever someone needs a lighthearted flight effect, keeping the cloud recognisable to fans decades after its debut.