interjection
do it!; go for it!; hurrah!
Archaic interjection used to cheer someone on, similar to a battle cry. Historically associated with Satsuma warriors. Not used in modern everyday speech.
「チェスト!」と叫んで、薩摩の武士たちは敵陣に突っ込んだ。
Shouting 'Chest!', the Satsuma warriors charged into the enemy lines.