do one's damnedest

variants: or

try one's damnedest

Definition of do one's damnedest

chiefly US, informal + impolite

  1. :  to try very hard to do something He's doing his damnedest to win. I'll try my damnedest to be there on time.

Word by Word Definitions

  1. :  to bring to pass :  carry out

    :  put

    :  perform, execute

  1. :  fuss, ado

    :  deed, duty

    :  a festive get-together :  affair, party

  1. :  the first tone of the diatonic scale in solmization

  1. : ditto

    : double occupancy

  1. :  utmost, best

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