The 'What Took You So Long, Idiot?' meme is a quintessential piece of anime culture, predominantly featuring the character Asuka Langley Sohryu from the Neon Genesis Evangelion franchise. Known for her abrasive 'tsundere' personality and her signature catchphrase 'Anta Baka' (Are you an idiot?), Asuka's impatient demeanor makes for the perfect reaction image. The meme typically targets individuals who are late to a trend, slow to understand a joke, or finally completing a task that was expected long ago. It gained significant traction on platforms like Tumblr and Twitter, where users repurpose her condescending stare to highlight the gap between expectation and reality in a humorous, biting way.