dump on somebody phrasal verb informal ( see also ↑ dump )
1 . dump something on somebody to unfairly give someone an unwanted job, duty, or problem to deal with:
Don’t just dump the extra work on me.
2 . American English to treat someone badly
3 . American English to criticize someone very strongly and often unfairly:
politicians dumping on their opponents
4 . dump (something) on somebody to tell someone all your problems and worries:
We all dump our troubles on Mike.