( informal , often humorous ) to buy sth that is expensive but useful :
Don't you think it's about time you invested in a new coat?
( informal , often humorous ) to buy sth that is expensive but useful :
Don't you think it's about time you invested in a new coat?
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005