"Call him Voldemort, Harry. Always use the proper name for things. Fear of a name increases fear of the thing itself."
Don't avoid the name, DISCREDIT the name. Someone finds a comic that's funny? Link his Neo-Nazi work so they know the artist.
"Refusing" to even say the name with the same stupid unoriginal phrase is not only useless and counterproductive, it's weak. Search "Pebble Yeet" and guess what you find.