Down The Rabbit Hole

1) What someone says when they get unintentionally sidetracked from an intended goal or routine, due to being absorbed by matters that arouse interest, seem unusual and/or puzzling. This is different from being distracted, as while distraction is simply a means to an end, going down a rabbit hole implies there is more than what meets the eye. Sometimes, the rabbit hole may end up opening new journeys, which in turn opens even more journeys and so on. The rabbit hole can regard trivial as well as serious matters. This term has been used for very long (circa AiW), however, it has gained more notable usage in recent times due to digital media, perhaps a bit too much usage. It is also the plot for many action thriller movies. 2) Another term for taking psychedelic drugs, especially when used as a euphemism.