work (one's) buns off

(redirected from working your buns off)

work (one's) buns 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 buns off at the gym! Sally and Jim work their buns off when we hold our user conference—I don't know what I'd do without them!
See also: buns, off, work