(colloquial) an expression showing
surprise, disbelief, etc.
a variation of the expression
good God, an interjection used as an exclamation to
express surprise, annoyance, disbelief, etc. The
word good is applied to
God to connote
moral perfection generally or to
refer to
God's benevolence. It came to be used in exclamations containing the name of
God. (
Lord is often used as a substitute for the
term God.)