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Acronym: Bring Your Own Beer. A party where the alcohol is not provided.
Wanna come over Saturday? We're having a BYOB party.
by The Grammar Nazi June 21, 2001
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Oct 30 Word of the Day
A trick played on a fellow athlete where the open hand smacks the target's testicles with the knuckles in a sharp, wrist flicking motion.
"Dude, I sack tapped Brandon, and now he has the whole team trying to sack tap me"
by Chris M July 07, 2004
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BYOB is an acronym with several similar yet related expansions. The acronym is most often associated with a social gathering (a party) at which the host will not be providing alcoholic beverages; the guests are invited to bring a beverage of their choice for their own consumption.

Common expansions of the acronym include:

Bring Your Own Bottle
Bring Your Own Booze
Bring Your Own Beer
Bring Your Own Beverage
not applicable, see above
by jeff24 July 01, 2005
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Bring Your own Bagpipes

Used for hardcore Scottish parties.
'agad lad BYOB in morrow caint be shorung dese pipes.
by naaaaate November 24, 2006
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Bring your own beer, booze, bitch, and/or bombs.
Im having a party, byob.
by brenn April 26, 2005
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A song by System of a Down, off of their fourth album "Mezmerize". The song is a gift from God himself.
Timmy: Have you ever listened to B.Y.O.B by System of a Down?
Jimmy: Hell yeah man!
by panicking! at the disco May 28, 2018
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Bring your own Burrito,

used for hardcore mexican parties.
ey sanchez tonight is BYOB, you guys cleared me out last night
by Ashzor Polgzor May 29, 2006
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