BYU, Corpus of Contemporary Amer. Engl. (COCA):
• you can imagine if it's a single parent just busting their butt trying to pay the rent
• What am I on? I'm on my bike, busting my ass six hours a day. (Lance Armstrong)
• busted her ass at the office, worked harder and more persistently than she had worked
• Earlier that afternoon, while busting his ass to get to Dulles airport, he'd gotten word
• I get out there and bust my ass, hustling every day to make a comfortable life for you
• I busted my butt for the Illinois State Police. I worked long hours.
• Nothing's worse than busting your ass for thirteen hours and knowing your work sucked
• he'd been slacking, which meant that I'd been busting my ass to cover for him and I was pissed.
• I busted my ass to memorize two long monologues before rehearsal even began.
• Hard work and determination certainly wasn't good enough. Busting my butt to help train every other astronaut in the corps wasn't good enoughsearch term [bust] + (collocations) ass|butthttp://corpus.byu.edu/coca/old/
to work one's ass off [coll.] - sich[Dat.] den Arsch aufreißen [sl.]
to work one's butt off [coll.] - sich[Dat.] den Arsch aufreißen [sl.] Dictionary: aufreißen
to bust a gut - sich[Dat.] ein Bein ausreißen [fig.] Dictionary: bust gutrelated discussion: to bust a gut - sich ein Bein ausreißen
wir, die wir noch dreißig Jahre bis zur Rente zu buckeln haben
(& other examples)related discussion: buckeln
I bust my butt in his shop and the other guy gets the (better) job! related discussion: to bust o's butt
another variety of "busted my ass" or "busted my butt" could be "busted my behind"related discussion: sich den Arsch aufreißenrelated discussion: bust your hump