What does it mean when an egg splatters and the white is greenish-yellow?

Question

This morning I decided to make some eggs. I cracked open the first egg and it just all sort of splashed out onto the pan, the yolk already liquefied and the whites with this yellowish-greenish hue.

I cracked open a second egg to see if the whole carton was like that, and it came out just fine, with white whites and an intact yolk. I still threw it out because that does not look safe to eat.
The carton shows a Best By October 2020, so it's a little out of date but not by much.
What happened here?

Anastasia Zendaya · Accepted Answer

From The Splendid Table:

Older eggs (which are still safe to eat) tend to be more alkaline, which encourages a green reaction similar to that green ring you can get around a hard-cooked egg yolk. The green is harmless, but pretty much inevitable in older eggs.

From Quora:

If the yolk is breaking easily then the eggs are either older eggs or lower grade eggs. The highest grade eggs is AA which not only looks at shell quality, but also the yolk quality. AA eggs should have a tall firm yolk. Over time the yolk becomes less firm and resilient causing breaking when it's cracked. Just because the yolk is breaking doesn't mean the egg is no good, just lower quality.

Conclusion:
As long as the egg doesn't smell, it should be safe to eat, making sure to cook it thoroughly instead of leaving some parts liquid.

What does it mean when an egg splatters and the white is greenish-yellow?

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