Pronoun
you-know-who
Person or entity whose name one does not want to mention but which is known to the person to whom one is speaking.
You-Know-Who
Alternative spelling of you-know-who
“BREAKING: NAB has been instructed (by you-know-who) to prepare case for Maryam Nawaz’s bail cancellation. Source: Internet
Nearly every witch or wizard dares not utter his unmentionable name, and refers to him instead with such expressions as "You-Know-Who", "He-Who-Must-Not-Be-Named" or "the Dark Lord". Source: Internet
Just flagging this for you in case you-know-who starts sh*tposting about Francis Collins at some point today and you find yourself wondering, “What’s this all about?” Source: Internet
Most characters in the novels refer to him as "You-Know-Who" or "He-Who-Must-Not-Be-Named" rather than say his name aloud. Source: Internet