Excommunication 

when a former significant other cuts off all contact with someone following a breakup.

After I broke up with Jane, she no longer speaks to me and even blocked me on Facebook. It was a total excommunication.

Excommunication by PhoneCall October 6, 2011

Transphobic Excommunication 

Transphobic Excommunication refers to a series of harassment campaigns within an otherwise progressive, leftist or queer-friendly space against a transgender person who has been found to have done something that steps out of line with the ideals of that community by using a series of tactics that would have otherwise been considered transphobic in order to humilate, exclude and hurt said transgender individual. It sometimes also comes in the form of dismissing the idea someone could be transgender because they have done something problematic. The fallout can be a useful reminder to other transgender members who are getting ideas to say or do something that might be seen as offensive or hurtful. This often comes from the idea that freedom from bigotry within a progressive space is something that is earned rather than a right those of a marginalized identity are entitled to have. Many members of transphobic excommunication mobs often feel they are in the right and think of their actions as examples of edgy progressive vigilantism rather than acts of transphobia.

"This transphobic excommunication of Contrapoints has gotten out of control. I don't think she should have said what she did but posting her personal information and dead-naming her was just a step too far."

Transphobic Excommunication by becuzmdsaid October 18, 2022

Excommunication 

An ecclesiastical measure removing a persons membership of the church

Martin Luther was removed from the Catholic Church via Excommunication by Pope Leo the Tenth in 1521.

Excommunication by Macroneo January 28, 2024

Transphobic Excommunication 

Contrary to what that other person said, the term Transphobic Excommunication would make more sense if the individual being 'excommunicated' was a transphobe who didn't fit in with the (left-wing) values and ideals of a community or mainstream society at large.

Tom faced transphobic excommunication when he posted a meme in a discord community that had an implicit transphobic message (i.e. he got kicked out of the server).

Transphobic Excommunication by Mary Mary Quite The Contrarian April 7, 2024