Such and such means an unnamed or unspecified place or thing.noun
An example of such and such is how you describe a place you can't remember, as in "We turned left at the first left, at such and such street."YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
(being) something particular but not named or specified: we went to such and such a place
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Not specified; unnamed or undetermined: They agreed to meet at such and such an hour.pron.
Something unspecified or undetermined.
such and such - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Not specified, unnamed and undetermined, as in They agreed to meet at such and such a time and place. [Mid-1500s]