(slang) Less vulgar synonym of work one's ass off.

(idiomatic, British spelling) Alternative form of work someone's ass off.

(idiomatic) To work especially hard, usually for an extended period.

(This entry is a translation hub.) (idiomatic, vulgar, slang) To work, or cause to work, excessively or to the point of exhaustion; see work + someone's ass off.

(slang) Less vulgar synonym of work someone's ass off.

(Canada, US, vulgar, slang) Synonym of work someone's ass off.

Third-person singular simple present indicative form of work one's tail off

simple past tense and past participle of work one's tail off

present participle of work one's tail off

(Australia, slang) Is lazy.