Palm off
Definition 1 of 1
Pro Tip 1/3Deceptive Action
Used when someone is trying to deceive another by giving them something unwanted or inferior. 
Don't let him palm off his chores on you as a favor.
Pro Tip 2/3Informal Usage
It's informal and usually used in spoken language or casual writing. 
I can't believe you tried to palm off that broken laptop as new to me!
Pro Tip 3/3Negative Connotation
Carries a negative connotation; it implies dishonesty or trickery. 
She felt guilty for palming off her expired coupons to the unsuspecting cashier.