The phrase 'You’re in a Cult, Call Your Dad' originated as a signature sign-off from the massive hit true crime podcast 'My Favorite Murder,' hosted by Karen Kilgariff and Georgia Hardstark. While it started as a humorous warning about actual high-control groups discussed on the show, it quickly evolved into a shorthand for any situation where someone is overly obsessed with a niche interest, a strange hobby, or a questionable social group. In meme culture, it is used ironically to call out friends' hyper-fixations or to highlight the absurdity of intense fandoms. The phrase has become a cultural staple for 'Murderinos' and is widely recognized as a playful yet blunt way to tell someone they have gone a bit too far down the rabbit hole.