The phrase itself is French, roughly meaning oh, that's Rebecca, and the clip circulates mainly as a WhatsApp audio and soundboard sound rather than from a widely documented film or show. Its origin is not clearly credited, which is typical for short voice notes that get forwarded, renamed and reposted across chats. Because the line names a specific person in a familiar, teasing tone, it spread as an in-joke among friends and editors who reuse it whenever a Rebecca appears, behaves predictably, or becomes the subject of a meme.
关于此声音
A short French WhatsApp audio clip of a voice saying Ah ça c'est Rebecca, shared as a funny reaction sound for chats, memes and edited videos.
This is a brief French voice clip built around a single expressive line, Ah ça c'est Rebecca, delivered with amused recognition as if someone has just spotted Rebecca doing something typical. The delivery is casual and slightly teasing, with the name landing as the punchline after the opening exclamation. Lasting just over four seconds, it works like an instant reaction, the kind of audio people drop into a conversation when a friend's name, photo or message appears and everyone already knows what that means without needing any further explanation or context added.