when a horse extends himself to the utmost.

When a horse tries to the best of his ability then it is called all out.

When a horse extends itself to the utmost.

the state of a side having no more batsmen available to bat, thus ending its innings, even if some batsman have not yet batted but are unavailable due to injury.

When 10 players out of 11 are dismissed or retired hurt such that he is unable to play then the team is said to be all out.

giving everything,not holding back