This meme derives from a memorable moment featuring professional wrestler AJ Styles in the WWE ring. Known for his confidence and charisma, AJ Styles is seen gesturing with his hands between two imposing opponents, delivering the line "That's cap. That's cap right there. That means it's a lie." In wrestling, storytelling is key, and this scene highlights AJ's ability to call out falsehoods with both authority and a touch of humor. The phrase "that's cap" is slang for calling out lies, adding a modern twist to this classic wrestling confrontation.