1 to try to stop sb asking questions or complaining by telling him/her sth that is not true （用欺骗手段）不让别人提问题或意见: Don't let them fob you off with any more excuses. 别让他们再用借口来搪塞你。

2 to try to give sb something that he/she does not want 硬要人家接受（不想要的东西）: Don't try to fob me off with that old car -- I want a new one. 不要塞给我这辆旧车，我要的是新车。