( informal ) used to say that you know or can guess what sb is going to say, especially because it is typical of them :
Don't tell me you were late again!
( informal ) used to say that you know or can guess what sb is going to say, especially because it is typical of them :
Don't tell me you were late again!
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005