Worked her butt off - Idioms by The Free Dictionary
work (one's) butt off (redirected from worked her butt off)
work (one's) butt off
To work really hard (on or at something). I know you thought it was just a silly New Year's resolution, but I've been working my butt off at the gym! Sally and Jim work their butts off when we hold our user conference—I don't know what I'd do without them!
References in periodicals archive
Lauren (pictured) said: "Lea worked her butt off
to get where she wants to be.
She's just worked her butt off
in practice and continued to work hard so she'd be ready to go whenever we needed her, and now we really need her.
Her former FOX Sports colleague, Tom Arnold, tells FHM, "She worked her butt off
and earned everything that she got.