- So-and-so is used as a stand-in for a name that you aren't sure of, or in place of using a vulgar expression.
- An example of when you might use the expression "so-and-so" is when someone at a party told you that the stock market was crashing but you don't remember her name. You might say "so-and-so said the stock market is crashing."
- An example of so-and-so is when you call someone a stupid so-and-so.
so-and-so definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
noun pl. so-and-sos
Informal some person or thing whose name is either not specified or not known: often used euphemistically in place of a strong or vulgar, disparaging epithet
so-and-so definition by American Heritage Dictionary
noun pl. so-and-sos so-and-sos
- An unnamed or unspecified person or thing.
- Informal A son of a gun.