used after the noun that it refers to in order to emphasize that there is nothing but the thing you have just mentioned involved in sth :
It's laziness, pure and simple.
used after the noun that it refers to in order to emphasize that there is nothing but the thing you have just mentioned involved in sth :
It's laziness, pure and simple.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005