Definition of so-and-so noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈsəʊ ən səʊ//
    ; NAmE NAmE//ˈsoʊ ən soʊ//
    (pl. so-and-sos) (informal)
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  1. 1[usually singular] used to refer to a person, thing, etc. when you do not know their name or when you are talking in a general way What would you say to Mrs So-and-so who has called to complain about a noisy neighbour?
  2. 2an annoying or unpleasant person. People sometimes say so-and-so to avoid using an offensive word. He's an ungrateful so-and-so.
See the Oxford Advanced American Dictionary entry: so-and-so