The 'Walking Dead' meme, specifically the 'Rick Grimes shouting at Carl' template, originates from the emotional Season 3 episode 'Killer Within.' In the scene, Rick discovers his wife has died and breaks down in front of his son, Carl. However, the internet transformed this tragic moment into comedy by focusing on Andrew Lincoln's heavy Southern-accented pronunciation of 'Carl,' which sounds like 'Coral.' The meme usually follows a dad-joke format where Rick tells a long-winded pun or an embarrassing story and then leans in close to shout 'Coral!' at a devastated-looking Carl. It remains one of the most enduring symbols of 2010s meme culture and the show's legacy.