so-and-soBrE/ˈsəʊ ən səʊ/NAmE/ˈsoʊ ən soʊ/noun (so-and-sos) (informal) [usually sing.]usedtorefertoaperson, thing, etc. whenyoudonotknowtheirnameorwhenyouaretalkinginageneralway（指叫不上名字的人、物，或泛指）某某人（或事物）◆WhatwouldyousaytoMrsSo-and-sowhohascalledtocomplainaboutanoisyneighbour? 要是哪位太太嫌邻居太吵闹，打电话投诉，你怎么跟她说？anannoyingorunpleasantperson. Peoplesometimessayso-and-sotoavoidusinganoffensiveword恼人的家伙；讨厌鬼◆He'sanungratefulso-and-so. 他是个忘恩负义的家伙。