blue check

noun2

1. •
   (Internet) A Twitter user whose account was verified by Twitter as authentic (i.e. not a parody or imposter account) and deemed to be of public interest prior to this system's replacement by a paid verification scheme in early 2023.

   • Other blue checks on Twitter also weighed including Questlove and John Mayer. — 2016
2. •
   (Internet, disapproving) An online troll, provocateur, or grifter who uses a paid account to attract greater attention after the early 2023 change on Twitter.