unload someone or something on (to) someone
to get rid of a burdensome person or thing on someone else. I unloaded my obnoxious little cousin onto his aunt. I didn't mean to unload my problems onto you.
unload something from something
to take things off of something; to remove the burden from something. Please unload the groceries from the car. I unloaded the groceries from the bags.
unload
tv. to get rid of someone or something. We’re gonna unload all the cats and dogs during the Christmas rush.