Open Bar

Open Bar

A beverage-service system where the host provides and pays for all of the drinks (i.e. free for guests) is known as an open bar.

open-bar-sign

The opposite of an open bar is a cash bar.

Synonyms:
Hosted Bar
Merriam-Webster Online Dictionary
open bar (noun)
a bar (as at a wedding reception) at which drinks are served free - compare cash bar
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