The Brief: "Y/N" is used in fanfiction. It stands for "your name" and allows the reader to insert themselves into the story.
“Y/N” is an abbreviation for “your name” in fan fiction. Readers are able to insert themselves into the story where “Y/N” is written.
According to Urban Dictionary, this is used in first person/ reader point of view fanfics. Many of these fanfics are found on Wattpad, Tumblr, and Twitter.
“Y/N” fanfic videos are also popular on TikTok. The hashtag #yn has accumulated over 96 million views on the app.
According to Fanlore, while the popularized usage of “Y/N” is more recent, the term dates back to 2011.
 JAEMIN UPDATE
“the rain is coming every single day without fail ㅎㅎ i like the sound of rain how about y/n💚?”https://t.co/Nn4LkdPojw
— 별 (@byeoldream) July 23, 2020
"I survive for all this feelings, but i think maybe now i will die, of a broken heart."
"My sadness has become an addiction, i feel lost. I start to find my way back which leads me back to my original state: Sadness."
— ThorThor🍒 (@GnaniAu) July 23, 2020