for ***'s/Christ's/goodness'/Heaven's etc sake ( spoken ) a) used when you are telling someone how important it is to do something or not to do something: For goodness sake, don't be late! b) used to show that you are angry or annoyed: What is it now, for ***'s sake? (in anger, in plea): for ***'s sake; for goodness' sake; for heaven's sake; for pity's sake
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