do one's damnedest

idiom
variants: or try one's damnedest

Definition of do one's damnedest

chiefly US, informal + impolite
: to try very hard to do something He's doing his damnedest to win. I'll try my damnedest to be there on time.

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“Do one's damnedest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/do%20one%27s%20damnedest. Accessed 24 Jan. 2021.

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