Wallah is Arabic derived slang widely used in French street speech to mean I swear to God, and c'est Paul simply means it's Paul. The clip circulates on French speaking soundboards and in short meme edits where a name reveal needs extra emphasis. Its humour comes from treating an ordinary identification like sworn testimony. Shared as a phone notification sound, a Discord reaction and a quick punchline in gaming chats, it survives because the phrase is short, repeatable and easy to drop onto any unrelated Paul sighting.