The story
- Japanese · derived from天皇陛下万歳“long live His Imperial Majesty”
- English todaybanzai charge
From banzai + charge. "Banzai" from Japanese 天皇陛下万歳 (Tennō Heika banzai, “long live His Imperial Majesty”), a common battle cry used by Japanese soldiers.
Etymology from Wiktionary, CC BY-SA 4.0.