Egg nog expiration date?

Q: Doesn't egg nog have an expiration date?
A: Yes, it does.

Q: Doesn't egg nog disappear from stores on/around January 2nd?
A: Yes, it does.

What kind of idiot would drink egg nog bought in December of 2021 that's a month beyond the Sell By... date?
Folks...you've come to the right place!