We found one dictionary that defines the word work his fingers to the bone:

General (1 matching dictionary)

1. work his fingers to the bone: Merriam-Webster

▸ Words similar to work his fingers to the bone ▸ Usage examples for work his fingers to the bone ▸ Idioms related to work his fingers to the bone ▸ Wikipedia articles (New!) ▸ Words that often appear near work his fingers to the bone ▸ Rhymes of work his fingers to the bone ▸ Invented words related to work his fingers to the bone