BBQ invite letters

• Drinker's party instruction, for short
• Invite abbr
• Letters on a frat party invitation
• Low-budget party letters
• Invitation abbreviation
• "No alcohol provided," briefly
• Party stipulation, briefly
• Letters on a party invitation indicating that booze won't be provided by the host

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
initialism (acronym) for "bring your own bottle" or "bring your own booze," by 1951.

Wikipedia Word definitions in Wikipedia
BYOB is an initialism used on party invitations, meaning "bring your own beverage" or variants. BYOB may also refer to: BYOB (musician) , an English musician B.Y.O.B. (song) , a song by System of a Down from their album Mezmerize BYOB (programming language) ...