What is the meaning of so-and-so?

noun

10
 
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APAWordNet. (2010). so-and-so. Retrieved February 22, 2019, from http://smartdefine.org/so-and-so/definitions/1311563
ChicagoWordNet. 2010. "so-and-so" http://smartdefine.org/so-and-so/definitions/1311563 (accessed February 22, 2019).
HarvardWordNet 2010, so-and-so, Smart Define, viewed 22 February, 2019, <http://smartdefine.org/so-and-so/definitions/1311563>.
MLAWordNet. "so-and-so" 23 October 2010. Web. 22 February 2019. <http://smartdefine.org/so-and-so/definitions/1311563>