When we have a party, we usually select a course and add “nomi-houdai” option.

However outside Japan,
I have never found these kind of option.
(I must admit that my travel experience is limited to only three countries)

Some say English word for Nomi-Houdai is “All you can drink”.
But I think this English word is not commonly used.

I searched other words on the Internet,
Then found several words,

Free drink, Free refill,
I think these word is for Non-Alcoholic Drinks.

bottomless drinks!
that is what I was looking for!