Voldemort / He-Who-Must-Not-Be-Named / Tom Riddle / Moldy Voldy is this dude who is after Harry Potter cuz when he (Voldemort), tried to Avada Kedavra Harry, the spell bounced back and instead hit Voldemort. Now Voldemort is out to get Harry and destroy him.

(The dude in the gif is Voldemort before he hade no nose)
"Voldemort"

"SAY HE-WHO-MUST-NOT-BE-NAMED'
by (: ɯoɯ ɹn January 14, 2023
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In online discourse, "voldemorting" is the act trying to undermine or diminish a well known but "problematic" public figure by refusing to use their name, or straight up pretending they they don't exist.
"I love those Harry Potter books, it's a mystery how they exist despite not needing to have been written by an actual person."
"Wait, are you actually Voldemorting J K Rowling?"
by HoopOfGoob August 18, 2022
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The act of using (preferably ever-changing, but still understandable in context) euphemisms for the topic of an online discussion, so that said discussion cannot easily be found with any search tool.
Don't bother searching for criticism of that guy; his fans harass everyone who does it so they're all Voldemorting him.
by EmbiggenedJ June 1, 2022
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Pulling a Voldemort can be defined as being fucked over (by a girl named Sydney) on more than one occasion and being cheated on for someone less attractive than you. The one who pulls the Voldemort then proceeds to downgrade so severely that they rot into a state of "less than dogshit" importance.
She was caught Pulling a Voldemort and he ended up dating this 10/10 chick. Score!
by MephyPheles June 20, 2014
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