( formal ) used to tell sb that you are annoyed and do not want them to do sth :
I'll thank you to mind your own business.
( formal ) used to tell sb that you are annoyed and do not want them to do sth :
I'll thank you to mind your own business.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005