DICT.TW Dictionary Taiwan

 rack·e·teer /ˌrækəˈtɪr/
 敲詐者,獲取不正當錢財的人(vt.)(vi.)詐騙錢財

 racketeer
      n : some who commits crimes for profit (especially one who
          obtains money by fraud or extortion)
      v : carry on illegal business activities involving crime