used to emphasize that it is important to do sth or when you are annoyed about sth :
Do be careful, for goodness' sake.
Oh, for heaven's sake!
For pity's sake, help me!
HELP NOTE : Some people find the use of Christ , God or heaven here offensive.
used to emphasize that it is important to do sth or when you are annoyed about sth :
Do be careful, for goodness' sake.
Oh, for heaven's sake!
For pity's sake, help me!
HELP NOTE : Some people find the use of Christ , God or heaven here offensive.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005