The term “rabbit hole meaning” is an informal phrase used to describe a situation where someone becomes deeply involved in a complex, often unexpected, or increasingly intricate line of thought, activity, or investigation. It originates from the metaphor of Alice falling down the rabbit hole in Lewis Carroll’s classic novel Alice’s Adventures in Wonderland, where she plunges into a strange and fantastical world. Today, the phrase has evolved into a common idiomatic expression, especially in online culture, to describe experiences where one’s curiosity or interest leads them into a lengthy or convoluted journey of discovery.