What do Spanish people on Christmas having to with grapes?

You're thinking of a Spanish tradition called "las doce uvas de la suerte", or "the twelve grapes of luck".

Here's how it works:

* New Year's Eve: On December 31st, at the stroke of midnight, Spanish people eat 12 grapes, one for each chime of the clock.

* Good luck: It's believed that eating a grape with each chime brings good luck for the next year.

* Origin: This tradition originated in the late 19th century, possibly as a way to get rid of surplus grapes from the harvest. It quickly caught on and became a beloved tradition.

So, Spanish people don't eat grapes on Christmas, but they do on New Year's Eve!