Please explain. It’s the first dad joke of programming I’ve ever seen.
The French pronounce the letters “eaux” as just “o”, and foo and bar are placeholder names for functions that are often used in programming tutorials.

Yes, but it’s “oh”, not “oo” (as in football)

So it’s read “foh-oh”. If you want to be correct, it’s “Fou - barre - base” (“foo - bar - baz”)

I’m French and most people know that oo is not “o.” Fou would have been the proper way to write it.
But how do you pronounce zoo?
“Omlette du frommage.”
I’m not French, but I read it as “foh-zoh”.

The “oo” in “foo” is written “ou” in French

Thus foo -> fou

“Feauxeaux” would be pronounced “fozo” (‘o’ as in “cold”)

Eaux in French is pronounced like o

So foo -> feauxeaux

French Furries: eauxWeaux :3
[Obligatory comment about frog fursuits goes here]

French people saying “water”:

but “eaux” is pronounced as “oh”, not “oo”. So the joke doesn’t really work.
Not really. Every programmer in French knows how to speak English, and foo is foo, not anything else.
I bet you’re fun at parties

Every programmer in France knows how to speak English

Impressive.