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
Taimi	TIE-mee	Finnish
Nathanahel	-	Biblical Latin
Jenni	JEN-ee (English), YEN-nee (Finnish)	English, Finnish
Hyram	HIE-rəm	English (Rare)
Anila	-	Indian, Hindi
Perdita	-	Literature