Synonyms for black hole

I was suffering all by myself at the bottom of a black hole.

And at the top of the slope I saw a black hole, and got off my pony to look in.

So down we goes into a black hole that yawns in the middle of a muddy field.

"It will be the 'Black Hole of Calcutta' downstairs," she remarked.

Roddy raced to the sound and saw in the wall a gaping, black hole.

I've a mind to give him a taste of me fist for luck when we get out of this black hole!

Because you were afraid to go into that black hole in the dark.

No fear of their pulling,” thought Mark, “if they feel as I do in this black hole!

This was also crowded, but it was not the “Black Hole” of the vessel.

Are we persons to enjoy a repetition of the Black Hole of Calcutta?