rabbit hole

IPA: rˈæbʌthˈoʊɫ

Used other than figuratively or idiomatically: see rabbit, hole. (The entrance to) a rabbit warren or burrow.
(usually with article) A bizarre world, where everyday rules do not apply.
(usually with article) A way into such a world.
(by extension) A time-consuming tangent or detour, often one from which it is difficult to extricate oneself.
(gaming) The initial clue that leads to an alternate reality game.

Examples of "rabbit-hole" in Sentences

In another moment I popped down the large rabbit-hole under the rock.
You take the red pill and you stay in Wonderland and I show you how deep the rabbit-hole goes.
This paper made me realize how deep the rabbit-hole of colloquial and dialectical speech goes.
Alice in Wonderland – The little girl who fell “down the rabbit-hole” into a wonderful world of fantasy.
The Ultimate Terrorist … no one here wants to visit the rabbit-hole of your paranoid, seditious rantings.
Dodgson regaled the girls with fantastic stories of a girl, named Alice, and her adventures after she fell into a rabbit-hole.
Ken Barnett/Disney In Los Angeles, a Hot Topic store was redesigned with an 'Alice in Wonderland' style rabbit-hole entryway and oversized toadstools.
The rabbit-hole went straight on like a tunnel for some way, but she was able to follow the trail of money, before it dipped suddenly down, so suddenly that Alice had not a moment to think about stopping herself before she found herself falling down a very deep well.