The 'For Those Who Didn't Catch the Reference' meme is a staple in online fandoms, used primarily to explain subtle callbacks, deep-cut easter eggs, or niche jokes within movies, TV shows, and video games. It typically functions as a 'did you know' style post where a user points out a connection that requires a high level of background knowledge to understand. While often used sincerely to share trivia on platforms like Reddit and Twitter, it is also frequently used sarcastically to point out things that are actually very obvious. The meme serves as a way for fans to signal their expertise within a community and celebrate the intricate details left behind by creators.