main character

plural main characters

1. InternetidiomaticA person who becomes a focal point of discussion on a social media platform (particularly Twitter).

   With his Jill Biden essay, Joseph Epstein became Twitter’s main character this month.

   2020, Paul Farhi, "How the dusty old op-ed pages became the red-hot outrage-generating machine of 2020", The Washington Post, 28 December 2020 (image caption)

   2 more examples

   Unless you’re in the business of receiving hate clicks for profit, you never want to be the “main character” of Twitter.

   2021 January 5, Dani Di Placido, “The Ballad Of ‘Bean Dad’ Shows The Cruel, Petty Side Of Twitter”, in Forbes

   And while Trump, at least, now faces a reckoning over his most consequential tweets via the January 6 hearings, one final way to understand Elon Musk as our new main character is to consider the internet that has incentivized the rise of both men.

   2022 July 14, Delia Cai, “How Elon Musk Became the Internet’s New Main Character”, in Vanity Fair

2. Used other than figuratively or idiomatically: see main, character.