Bom, tarabom, tarabom

• bom, tarabom, tarabom: a drumbeat → military bands performed concerts in the Hollow

• bom: the sound of a gun discharging, or of a heavy object landing on the ground

• bomb

• the sound of thunder

• Tara, Hill of Tara: the seat of the ancient High Kings of Ireland and an important religious site since ancient times
  • A Finnegans Wake Gazetteer