double down

verb
doubled down; doubling down; doubles down

Definition of double down

intransitive verb

1 : to double the original bid in blackjack in exchange for only one more card
2 : to become more tenacious, zealous, or resolute in a position or undertaking the administration needs to double down on the call for political reformWashington Post

First Known Use of double down

1949, in the meaning defined at sense 1

Keep scrolling for more