Look up BYOB in Wiktionary, the free dictionary.

BYOB is an initialism used on party invitations, meaning "bring your own beverage" or variants. BYOB may also refer to:

• B.Y.O.B. (song), a song by System of a Down from their album Mezmerize
• BYOB (programming language), a computer programming language
• Bring your own bag, a government campaign to discourage plastic shopping bag use
• Build Your Own Browser, a discontinued project from Mozilla, that ran from September 2009 to June 2012. It let people build customized versions of the Firefox web browser.

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