Similar to a White Knight. Black Knights strive to uphold righteousness and a "do or die" mentality when it comes to social justice. They maintain a ridiculous set of standards, rules, and unrealistic expectations regarding how a community should be upheld/changed. They maintain a black-and-white view of the world, and leave little room for human error.

They are fond of over-blowing "problematic" issues, crying wolf when it comes to online drama (especially personal conversations), digging up dirt on people, and enforcing a strict "order" despite any chaos it might cause as a result. They will always do this for personal satisfaction, rather than for any social gratification, as even if people argue with them, they'll simply choose not to listen or to dissect arguments or the people arguing with them in similar fashion. Even if they are proven wrong, in the end, they will continue to believe in their own viewpoint.

Black Knights will also abuse their position in social justice and use common buzz words or phrases in order to paint whatever target they dislike in the worst light possible in order to try and de-popularize it/them within their community. If you are imperfect, then to them, you are worthy of death.

Black Knights can be found practicing Cringe Culture and Cancel Culture, and love spreading rumors and/or drama regarding popular people or subjects in order to find and exploit any and all flaws in a potential icon/idol, subject, or piece of media.
Black Knight dialogue;
"You shouldn't enjoy (FANDOM) because (XYZ...) and if you do then you're irredeemable scum and I hope you die :)"

"I'm writing this callout post for (internet friend) because they're ABUSIVE" ((they're not, this person is lying to make their friend look bad and using fake screenshots))

"I don't care what anyone says, I still think he's definitely abusive, the people defending him are all brainwashed idiots, and the guy who defended him is ALSO problematic, and the people defending him, and the people defending the people who defended the guy who defended him, and-"
by begliar September 30, 2020
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When you lose, nay, you get your ass handed to you in an online quarrel, and you refuse to let your better have the last word.
Jordan kicked Roland ass in a comment thread duel, but Roland Black Knighted Jordan because he couldn’t stop typing out his shitty points.

Roland Black Knighted Jordan.

Jordan says, “The Black Knight won” by concession to Roland’s comment cardio.
Roland lost the online disagreement, but kept going on to Black Knight Jordan.

Roland won by Black Knight
by IdahoJockDoc November 24, 2019
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