Text slang for "I used Corruption because I trusted you."--a quote said by Chuuya Nakahara from Bungo Stray Dogs Season 2 Episode 10, "Double Black", after he used Corruption--a form of his ability--to beat the fuck out of H.P. Lovecraft by Osamu Dazai's command. Used by Bungo Stray Dogs fans to say "I love you" in a more creative way, or, alternatively, to show just how gay he and Dazai actually are.
Anna: ily dan!
Dan: iucbity!
Anna: this is why we broke up a month ago you weeb
by mmstrawberri March 5, 2022
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