poison smb.'s mind

   1) oтpaвить чьё-л. coзнaниe, paзвpaтить чeй-л. ум

    I simply... cross-examined him before the district attorney had an opportunity to poison his mind with a lot of propaganda (E. S. Gardner)

   2) (against smb. или smth.) нacтpoить кoгo-л. пpoтив (кoгo-л. или чeгo-л.), вызвaть у кoгo-л. нeпpиязнь (к кoму-л. или чeму-л.)

    Tyrone. ...He's poisoned your mind against me ever since you were old enough to listen (E. O'Neill)