BYOB

or BYO

  1. bring your own bottle, as of liquor or wine: often included in an invitation to indicate that the host will not provide liquor.

Origin of BYOB

First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for byob

BYOB

abbreviation for
  1. bring your own beer
  2. bring your own booze
  3. bring your own bottle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for byob

BYOB

initialism for "bring your own bottle" or "bring your own booze," by 1951.

Online Etymology Dictionary, © 2010 Douglas Harper