Bust (one's) ass American Canada verb phrase vulgar slang
To work really hard
I busted my ass for weeks to complete my essay.
They busted their asses to meet KPIs.
To urge someone to complete something by nagging, harassing or upbraiding
The team leader bust everyone’s ass to make sure that they complete the project on time.
He keeps busting my ass as if I could finish the job in one day.
If someone bust your ass, they defeat you in a decisive way.
Tom’s team busted our ass and became the champion.
To hurt someone or beat someone up
Get out of here or I’ll bust your ass.
To make fun of someone
I’m just busting your ass, don’t be so dramatic.
To quit; to give up, stop doing something because you know that you cannot succeed; admit defeat
Beat someone up
To work extremely hard
The verb "bust" should be conjugated according to its tense.