Did her darnedest - Idioms by The Free Dictionary
do (one's) darnedest (redirected from did her darnedest)
do (one's) darnedest
To put forth the utmost amount of energy or effort toward some task or goal. A more polite version of "do one's damnedest." Money is a little tight at the moment, but I'll do my darnedest to be there for your wedding.
References in periodicals archive
did her darnedest
to make histrionics work similarly for her.
She decided that pickup trucks were a serious threat to the sheep and she did her darnedest
to keep them out of "her" territory which included the street out front.