It's actually pretty funny how he uses the ching-chong bing-bong stereotype accent for Lao when he's around the ignorant townspeople and then switches when he's talking to the boy.
This movie is fantastic, and the 70s porn version "The 7 Seductions of Madame Lao" isn't too shabby, either. It's no Night Dreams but it definitely has enough weird, ill advised "artistic" pretensions to make it worth a look if you like that sort of bad movie.