Определение cash bar в Английский Язык Английский Язык словарь
A bar at a social event for which guests are required to pay for the drinks themselves. It is opposed to an open bar, where drinks are paid for by the host
The party included a reception, a dance, and a cash bar.
A bar, such as one at a large party, where drinks are sold by the glass. a place at a big party, wedding etc where guests have to pay for their own drinks