fill someone's boots

fill someone's boots (third-person singular simple present fills someone's boots, present participle filling someone's boots, simple past and past participle filled someone's boots)

1. To take over someone's role.
   • 2023 November 15, Ian Prosser talks to Stefanie Foster, “A healthy person is a more productive person”, in RAIL, number 996, page 37:

     He leaves big boots for his successor to fill.

• fill one's boots

• step into someone's shoes