Definition of have one's will in English:

have one's will

phrase

archaic
  • Obtain what one wants.

    • ‘Not only have the competitors had to lay down their gloves, as it were, to manipulate their own happy ending, but neither has emerged the clear victor, the comic hero who ‘has his will.’’
    • ‘At the end of her tale, she delivers a bit of wisdom that has yet to be improved upon: When it comes to love, ‘A woman will have her will.’’