"Lordy" is a colloquial exclamation that expresses surprise, excitement, or astonishment. It is often used when something unexpected or remarkable happens. In this context, the clue "Good golly!" is likely meant to convey a similar sense of surprise or excitement. It can be used to express astonishment or enthusiasm about something impressive, interesting, or even shocking.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: "Mercy me!". Explanations are generated by AI and may be inaccurate.