1. black hole - Noun
2. black hole - Verb
4. black hole - Phrase
A dungeon or dark cell in a prison; a military lock-up or guardroom; -- now commonly with allusion to the cell (the Black Hole) in a fort at Calcutta, into which 146 English prisoners were thrust by the nabob Suraja Dowla on the night of June 20, 17656, and in which 123 of the prisoners died before morning from lack of air.
Source: Webster's dictionaryblack-hole
A good bookshop is just a genteel Black Hole that knows how to read. Terry Pratchett
A black hole really is an object with very rich structure, just like Earth has a rich structure of mountains, valleys, oceans, and so forth. Its warped space whirls around the central singularity like air in a tornado. Kip Thorne
I have one good characteristic: I'm a pessimist, so I always imagine the worst - always. To me, the future is a black hole. Krzysztof Kieślowski
Now, our Sun will not collapse to a black hole. It's actually not massive enough. Janna Levin
Do you realize that if you fall into a black hole, you will see the entire future of the Universe unfold in front of you in a matter of moments and you will emerge into another space-time created by the singularity of the black hole you just fell into? Neil deGrasse Tyson
Remember the referendum on the Charlottetown constitutional accord? The more Canada's political and business elites threatened Canadians that the country would disappear into a black hole if the accord weren't passed, the more Canadians opposed it. Preston Manning