palm someone off with something
phrasal verb with palm verb [ T ] uk/pɑːm/ us/pɑːm/
用（不实或应付之词或无价值之物）打发（某人）
to give someone an untrue or unsatisfactory answer, or to give someone something that has no value in order to try to satisfy them and make them go away
You're not going to palm me off with that feeble excuse. 你别想用那个站不住脚的借口打发我。