容嬷嬷用针扎他
[róng mā mā yòng zhēn zhā tā]
'Nurse Rong pricks him with a needle,' refers to an iconic antagonist character from a popular TV drama series called “My Fair Princess”. Nurse Rong is remembered for her cruel nature particularly when punishing the prince. The phrase likely conveys a playful threat toward someone annoying or disliked.