The sound comes from Peppa Pig, the British animated series for young children that first aired in 2004 and became a global phenomenon. Peppa's snorts and squeals are part of her character voice, and short clips were later isolated by fans and shared on soundboards and social media. As Peppa became a meme figure beyond children's television, her pig noises were reused ironically in edits aimed at older audiences. That contrast between an innocent cartoon sound and unrelated footage is why the clip remains popular for quick comic punctuation.