fansign

noun3

1. •
   (Internet) A photograph of a person with an inscription (often on the body or a piece of paper) used on the Internet as an autograph of a celebrity or as a sign of love for a celebrity from a fan.

   • Fansigns can go from okay to weird as fans are really known to show devotion and dedication to their idols […] — 2013
2. •
   A meet-and-greet with a K-pop artist where fans can ask questions, receive autographs, take photos or receive hugs.

   • Most fans would relish the chance to see their idols live in concert at least once, or attend a fansign event and get a personal signature! — 2021
3. •
   (Internet) A photograph or video of a minor or target containing an inscription (often their username, a group name, or a slur) coerced by predatory online networks such as 764 or the com as a form of humiliation, extortion, or proof of grooming.