A meme originating from the eighth and final episode of the first season of Invincible, which premiered on April 30th, 2021. Features Omni-Man trying to convince his son Invincibleto abandon his heroic ideals so they can conquer the Earth together, after his true colors as the would-be invader are revealed.
If there's associated text, someone is usually saying "Think, Charactername, think!", as per the original comic, though in the show, only "Think, Mark!" was said.