卖狗皮膏药
mài​gǒu​pí​gāo​yao

to sell quack remedies

  1. 卖 賣 mài verb
    to sell
    To exchange goods for money; to be for sale; opposite of 买 mǎi
  2. 狗皮 gǒu​pí
    low-quality
    (figurative) poor quality; sham; counterfeit (often in the context of quack remedies or unscrupulous behavior)
  3. 膏药 膏藥 gāo​yao
    medicated plaster
    herbal or medicated patch used in Chinese medicine, applied to wounds or painful areas of the body