jamboree /ˌjambəˈrē, ˌdʒæmbəˈri 
/ ▸ noun a large celebration or party, typically a lavish and boisterous one: the film industry's annual jamboree in Cannes.
▪ a large rally of Boy Scouts or Girl Scouts.
– ORIGIN mid 19th century (originally US slang): of unknown origin.
EnglishOxford New American Dictionary
