Being in a secret place; conducted secretly.(adjective)
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.
Use "hole-and-corner" in a sentence
"Don't squirrel it away as a shady hole-and-corner Hertfordshire country-house cabal."
"Given how badly he has played his hand and given the hole-and-corner way he has gone about it, the electorate are unlikely to draw a favourable conclusion on the matter."
"Ethelberta was far from putting this matter before Picotee for advice or opinion; but, like all people who have an innate dislike to hole-and-corner policy, she felt compelled to speak of it to some one."