knucklebone
(noun)
noun
1. A bone that forms a knuckle in the human hand, in an animal's paw or any bone that forms a similar bump.
2. Such a bone once used in children's games of chance
3. (slang) A die
(noun)
1. A bone that forms a knuckle in the human hand, in an animal's paw or any bone that forms a similar bump.
2. Such a bone once used in children's games of chance
3. (slang) A die