Meaning of “dump” - Learner’s Dictionary

dump

verb uk us /dʌmp/

[ T ] to put something somewhere to get rid of it, especially in a place where you should not put it:

The company was fined for illegally dumping toxic chemicals.
dump sth on/in/down, etc

to put something somewhere quickly and carelessly:

Henri dumped his bag on the table and went upstairs.

(Definition of “dump verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)