foist someone or something off (on someone or something)
to cast someone or something unwanted off on someone or a group. Please don't try to foist cheap merchandise off on me.Don't foist off your brother on me!You can't foist that stuff off! It's worthless! People won't buy it!
To force something, especially something unwanted, worthless, or false, on someone: She foisted off the furniture on the new owners. The peddler foisted his wares off on the unsuspecting crowd.