The line comes from The Boys, the Amazon series that premiered in 2019, where Karl Urban plays Billy Butcher, the blunt leader hunting corrupt superheroes. Butcher repeatedly calls Homelander and Vought's schemes diabolical, and fans clipped the delivery into a standalone reaction. It spread across TikTok, YouTube edits and group chats alongside sounds like the Homelander going crazy angry violin theme song, becoming shorthand for reacting to something morally awful. Its staying power is the delivery, half catchphrase and half insult that fits almost any scandal.