In standard Dutch the phrase roughly means yes, I know that now too, and its charm comes from the unmistakable Ghent pronunciation rather than any elaborate joke. The clip is tagged on soundboards with Romain Deconinck and Ghent, although the exact original recording is not clearly documented. Online it survives mainly as a niche reaction sound, shared among Flemish speakers who recognise the accent instantly and reuse it whenever someone catches on a little too late.