give one's all

Meanings:

• 1.

  UKUSAustralianeutralidiomatic
  • To make the utmost effort; to expend all of one's energy, ability, or resources in pursuit of a goal.

• 2.

  UKUSAustraliaeuphemisticidiomatic
  • To die while making the utmost effort or while sacrificing oneself in the course of committed action.