BYOB stands for "bring your own bottle", "bring your own booze", or "bring your own beer", depending on the context. Learn about the origin, usage and regional differences of this acronym, as well as related terms like corkage and bottle club. Meaning "B.Y.O.B." by System of a Down is a politically charged song that delves into themes of war, hypocrisy, and social inequality. The lyrics are filled with vivid and often satirical imagery, creating a powerful commentary on the state of society and government actions. Discover the meaning, origin, and cultural significance of BYOB (Bring Your Own Bottle). Learn about different contexts where BYOB is used, etiquette, and much more. What does the abbreviation BYOB stand for? Meaning: bring your own beer; bring your own booze; bring your own bottle.