Words in sync with the festive fervour
Jamboree: A large celebration or party, typically a lavish and boisterous one
Eg: They wanted to be a part of film industry's annual international jamboree
Jollification: Lively celebration with others; merrymaking.
Eg: The eight months of commemorative jollification for the Eiffel Tower began in March
Gaiety: The state or quality of being light-hearted or cheerful; lively celebration or festivities.
Eg: She seemed to be a part of the gaiety, having a wonderful time
Beanfeast: A celebratory party with plentiful food and drink.
Eg: They had planned on some cheerful music for the beanfeast, instead, Larry and his boy band started playing their metal music!
Chipper: Cheerful and lively
Eg: Betsy was in a chipper mood considering all that was going on
Bonhomie: Cheerful friendliness; geniality
Eg: The group of teenagers exuded good humour and bonhomie