so-and-so
noun /ˈsəʊ ən səʊ/
/ˈsəʊ ən səʊ/
(plural so-and-sos)
(informal)- [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
（指叫不上名字的人、物，或泛指）某某人（或事物） - What would you say to Mrs So-and-so who has called to complain about a noisy neighbour?
要是哪位太太嫌邻居太吵闹，打电话投诉，你怎么跟她说？
- What would you say to Mrs So-and-so who has called to complain about a noisy neighbour?
- an annoying or unpleasant person. People sometimes say so-and-so to avoid using an offensive word.
恼人的家伙；讨厌鬼 - He's an ungrateful so-and-so.
他是个忘恩负义的家伙。
- He's an ungrateful so-and-so.