godan verb (-ru), transitive verb
use up completely; exert fully; do one's utmost
Emphasizes exhausting a resource or capacity: strength, ideas, effort, etc. Often used with 力, アイデア, 全力, etc.
彼は最後の力を出し切って走り抜いた。
He used up his last strength and ran through to the end.
会議でアイデアを出し切
I exhausted all my ideas at the meeting.
全力を出し切って戦った。
I fought giving it everything I had.