Definition of "hole in the wall" [hole in the wall]

• A small, very modest, often out-of-the-way place. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I had understood from Hubert that the Mother Superior's room, in which the powder was stored, was near to this, and that the train had been laid through a hole in the wall from some neighbouring cell."
• "It was huge, with walk-in closets and smart-matter windows, and a hole in the wall that could grind out almost anything."
• "Then ef it's groceries, ur milk, ur peddlers 'stuff, ur what not, you have to go to the dumb-waiter that fetches things up through a hole in the wall like a well-bucket an' take the things off."