for God's sake
Definition from Wiktionary, the free dictionary
- An exclamation showing surprise, impatience, or some other emotion.
- For God's sake, don't scare me like that!
- Put some pants on, for God's sake!
Sometimes, though not always, pluralized to for God's sakes in American usage.
There are many variants which use euphemisms for God.
Exclamation of surprise, impatience, etc