So-and-so meaning
Frequency:
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.
noun
An unnamed or unspecified person or thing.
noun
A son of a gun.
noun
Some person or thing whose name is either not specified or not known.
noun
(idiomatic) A placeholder name for a person or thing, used when a name is not known; a generic name.
She told me to ask so-and-so, but he didn't know, either.
noun
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Some thing or things.
He will tell you to do so-and-so, but read the instructions first, anyway.
noun