Work (one's) butt off American vulgar phrase
If you work your butt off, you work really hard.
I worked my butt off to finish the report on time.
She worked her butt off for every opportunity that has come her way.
Tom has been working his butt off at the gym for 5 months.
To work extremely hard
To work extremely hard to achieve something
1. To use a great amount of effort or energy in order to do or complete something
2. To trash or harass someone to do or finish something
1.To work really hard
2. To urge someone to complete something by nagging, harassing or upbraiding
3. If someone bust your ass, they defeat you in a decisive way.
4. To hurt someone or beat someone up
5. To make fun of someone
To works so hard that one's fingers are torn to the bone. A metaphorical saying to express that someone who does an extreme amount of work.
The verb "work" should be conjugated according to its tense.
If a person has the devil's own luck, he or she has extremely good luck.
A: Yesterday I won a $10 million lottery jackpot and today I won a car in a draw.
B: You have the devil's own luck.