Porco Dorio appears online mainly as a short reaction audio shared in meme edits and reposted soundboards rather than as a widely documented standalone source clip. Its spread comes from the delivery: fast, loud and immediately comedic, which makes it easy to drop into short-form videos. Creators keep using it because it communicates instant disbelief or explosive annoyance without needing setup. It often fills the same editing role as a bruh reaction or other goofy ahh sounds in chaotic meme posts.