The term "borg" can refer to two very different things depending on context:

1. In popular culture, particularly the Star Trek universe, the Borg are a fictional alien group of cybernetic organisms linked in a hive mind called "The Collective." They assimilate other species to add their distinctiveness to their own and are known for the phrase "resistance is futile." They are depicted as a blend of biological and mechanical parts and are iconic antagonists in Star Trek series and films.
2. In contemporary social settings, especially among college students in the United States, a "borg" (sometimes written as BORG, meaning "blackout rage gallon") is a type of mixed alcoholic drink made in a plastic gallon jug. It typically includes water, vodka (usually a fifth, about 750 ml), flavored drink mixes, and sometimes electrolyte mix. This drink is popular partly because it is personalized, can be capped to prevent drink spiking, and is intended for consumption by one person at parties. Despite some claims of being a hangover remedy or safer drinking method due to its water and electrolyte content, these claims lack scientific backing, and the drink's high alcohol content poses significant health risks.

So, "borg" could mean either the cybernetic alien collective from Star Trek or a popular alcoholic drink trend among college students. The intended meaning depends on the context in which the term is used. If you're asking about the drink, it's a gallon jug with a mix of vodka, water, and flavoring designed for personal consumption at parties. If you're asking about the Star Trek reference, it's the name of a menacing collective of cyborg antagonists. Let me know if you want more details on either!