Definition of «open bar»

The phrase "open bar" means that drinks at an event are provided for free and you can have as many as you want.

Or enjoy an afternoon pirate cruise with open bar and lunch. (cancun-bestdiscounts.com)
They ended up opening the bar at the back of the plane so passengers could help themselves. (havebabywilltravel.com)
Trip includes open bar with beer, delicious warm lunch, snorkel equipment and lessons. (caradonna.com)
(see all sentences)