( NAmE , informal ) used to express the fact that you admire sb or find them amusing, often when they have done sth that surprises you :
You're some piece of work, Jack, do you know that?
( NAmE , informal ) used to express the fact that you admire sb or find them amusing, often when they have done sth that surprises you :
You're some piece of work, Jack, do you know that?
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005