"Posse" refers to a group of people who come together for a common purpose, often associated with law enforcement or community activities. Historically, a posse was a group of citizens summoned by a sheriff to assist in maintaining order or pursuing criminals in the American West. In modern contexts, "posse" can also refer to a close-knit group of friends or associates who support each other. This usage is popular in youth culture and can be seen in various forms of media, including music and movies, where it often emphasizes loyalty and camaraderie among members of the group.