"B.Y.O.B." originally means "Bring your own Beverage" in party terms, but in this song it is supposed to mean "Bring your own Bombs." And when they say "party" they mean war.
This song is not about partying at all, because if you read the lyrics it's obvious.
Generally, it is just an anti-war song. Also, it's about how they send the poor into war.
"B.Y.O.B." originally means "Bring your own Beverage" in party terms, but in this song it is supposed to mean "Bring your own Bombs." And when they say "party" they mean war.
This song is not about partying at all, because if you read the lyrics it's obvious.
Generally, it is just an anti-war song. Also, it's about how they send the poor into war.