( informal ) used to tell sb that sth they are hoping for is not likely to happen :
'I'll be a manager before I'm 30.' 'In your dreams.'
( informal ) used to tell sb that sth they are hoping for is not likely to happen :
'I'll be a manager before I'm 30.' 'In your dreams.'
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005