palm something off
phrasal verb with palm verb [ T ] uk/pɑːm/ us/pɑːm/
把（自己不想要或无价值的东西）硬塞给（或卖给）
to give away something, or persuade someone to accept something, because you do not want it and you know it has no value
She tried to palm her old car off on me. 她试图骗我买下她那辆旧汽车。