so-and-so
谁谁───so-and-so
would be a case of "just do so-and-so and here's your cash."───情况会是“只管做这做那，然后拿钱”。
He's an ungrateful so-and-so.───他是个忘恩负义的家伙。
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，你跟她怎么说？
If I were your friend and I told you that So-and-So would be the perfect date, your response to me would be to start asking me questions.───如果我是你的朋友并告诉你某某人将会是完美的相亲对象，那么你回应我将会以问问题开始。
And so he learned a lot "inside" : so-and-so is by whom relationship into the company, so-and-so bonus hair how much.───他也因此了解了颇多“内幕”：某某是靠谁的关系进了公司，某某的奖金发了多少。
A younger person who has no identifiable name or job title is called by an elderly person as Xiao (Younger) So-and-so.───凡是没有明显称谓或工作头衔的年轻人，年长的人就叫他们“小某某”。
It would be a case of 'just do so-and-so and here's your cash'.