( informal ) used to show that you think sb is lucky to have sth, be able to do sth, etc. :
'I'm off to Paris.' 'Lucky you!'
( informal ) used to show that you think sb is lucky to have sth, be able to do sth, etc. :
'I'm off to Paris.' 'Lucky you!'
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005