"Vitriolic attacks" refers to highly critical and angry comments or verbal assaults aimed at someone or something, typically expressed with intense bitterness, harshness, and venomous language. Full definition
The NDC MP also launched vitriolic attacks on President Akufo - Addo, calling on him to wake up in dealing with vigilantism before Ghana start experiencing a replica of Bokom Haram and other civil wars. (ghanapoliticsonline.com)
But the article and its author also became the object of extraordinarily vitriolic attacks from climate commentators who refuse to accept any evidence that may unsettle their view of the science. (dailymail.co.uk)
Rather than reel out your physical achievements in office such as the roads and dams your administration has built or launch vitriolic attacks on your opposition, I think they should allow you to address Nigerians directly. (punchng.com)