Bashed—Smashed.
Big boys—Big guns or the shells they send over.
Big push—The battles of the Somme.
Billets—The quarters of the soldier when back of the line. Any place from a pigpen to a palace.
Bleeder or Blighter—Cockney slang for fellow. Roughly corresponding to American "guy."
Blighty—England. East Indian derivation. The paradise looked forward to by all good soldiers,—and all bad ones too.
Blighty one—A wound that will take the soldier to Blighty.
Bloody—The universal Cockney adjective. It is vaguely supposed to be highly obscene, though just why nobody seems to know.
Blooming—A meaningless and greatly used adjective. Applied to anything and everything.
Bomb—A hand grenade.