not to treat a situation seriously, especially in order to cheat sb :
Don't play silly games with me; I know you did it.
not to treat a situation seriously, especially in order to cheat sb :
Don't play silly games with me; I know you did it.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005