bok chai Share definition Flag A child master with a lazy or sarcastic, but not due to incompetence, adult servant. It is borrowed from the Vietnamese word: bậc thầy. The spoiled child said, "I am the bok chai!" while waving a makeshift scepter. bok chai by Teg Louis January 5, 2022 0 0 Get merch Get the bok chai mug. Buy Now — $32.95 See more merch