bust (one's) ass

rude slang To work very hard. I've been busting my ass studying for this exam, so I really hope I get a good grade. We can't blow off Holly's party—she's been busting her ass cooking and cleaning and getting everything ready for company.

Common Names:

Name	Pronounced	Usage
Immaculada	-	Catalan
Ananta	-	Hinduism
Iolanda	-	Italian, Portuguese, Romanian
Gervais	zher-VE	French
Ayal	-	Hebrew
Glukel	-	Yiddish