dump on

/D AH1 M P AA0 N/
verb
  1. 1

    To finish a romantic relationship with (someone).

  2. 2

    To complain to (someone) extensively; to (figuratively) transfer one's problems to (someone) by complaining to them.

    โ€œI came home and dumped on him about everything that was going on at work.โ€

Synonyms

Source: https://en.wiktionary.org/wiki/dump%20on