rant against (someone or something)
To complain angrily, forcefully, and at great length about someone or something. You should spend less time ranting against your professor and spend more time studying the material. I stop paying attention whenever he starts ranting against the government.
rant against someone or something
to rave and yell against someone or something. She spent most of the morning ranting against her mother-in-law. Leonard spent the entire morning ranting against the government.