The phrase denotes a celebration held within an elevated, typically wooden, structure during the final evening of the year. It represents a unique and potentially adventurous alternative to conventional celebrations, often suggesting a more intimate and nature-oriented experience. As an example, families might choose to forego large gatherings for a quieter, more personalized event in a backyard treehouse.
Such an event provides several potential advantages, including a novel change of pace from traditional holiday routines. The limited space often associated with these structures can foster closer relationships and create lasting memories. Furthermore, the natural setting can provide a welcome respite from the often-hectic atmosphere of end-of-year festivities, promoting relaxation and contemplation. Historically, celebratory gatherings have always adapted to available spaces and cultural preferences, making this a modern iteration of that impulse.
