- be-in
- noun slang hippie cultureA gathering or social occasion with or without a discernible purpose, often held in a public place like a park or under a large circus tent.
The youngsters really enjoyed the great springtime jazz be-in at the park.
Словарь американских идиом. — СПб., Изд-во "Лань". Оригинал: A.Маккей, М.Т.Боткер, Дж.И.Гейтс. 1997.