A spontaneous social gathering, often temporary and in an unexpected location, characterizes this type of event. These events are typically announced shortly before they occur, often via social media or word-of-mouth, creating a sense of immediacy and exclusivity. A flash mob, for instance, organized for a specific performance in a public space and then quickly disperses, exemplifies this concept.
The appeal of such impromptu celebrations lies in their novelty, excitement, and the feeling of being part of something special. These gatherings foster community and create memorable experiences, often bypassing traditional event planning constraints. Historically, they have been used as a form of social or political expression, providing a platform for collective action and creative expression outside established channels.