French joke.

He is jailed in a jail nicknamed "La Santé", which is also the the french cheers sentence. "À la votre *et la santé".

Will be the running gag of this christmas and new year.

It's not a nickname. It's simply because the prison is located on Rue de la Santé (Health Street). Rue de la Santé was named that way because there was a hospital there from the 17th to the 19th century.

I hesitated to call it a nickname, as the name is "Paris-La Santé".

But got covered by Wikipédia "https://fr.wikipedia.org/wiki/Prison_de_la_Sant%C3%A9", so I did called it a nickname too.

I'm pretty sure it can be called a "Métonymie de lieu" but I just didn't want to insist about that, it feels a little pedantic.

> it feels a little pedantic

Typical French conversation then!

Oh no, we hold back when we're here. For example, I didn't mention the possibility that it might simply be an ellipsis. And no one wants to talk about apocope.