dump (something) in (someone's) lap

dump (something) in (someone's) lap

To foist something onto someone else, usually some task or responsibility. Yep, management dumped that big project in my lap after Lydia resigned.
See also: dump, lap
Farlex Dictionary of Idioms.

drop/dump something in somebody’s ˈlap

(informal) make something the responsibility of another person: They dropped the problem firmly back in my lap.
See also: drop, dump, lap, something
Farlex Partner Idioms Dictionary
See also:
  • blame for
  • blame for (something)
  • blamed
  • leave (one) holding the baby
  • leave somebody holding the baby
  • leave (one) holding the bag
  • leave holding the bag
  • blame on
  • blame on (someone)
  • for once