tooth and nail

Harper Leeの 'To Kill a Mockingbird' を読んでいます。

After my bout with Cecil Jacobs when I committed myself to a policy of cowardice, word got around that Scout Finch wouldn't fight any more, her daddy wouldn't let her. This was not entirely correct: I wouldn't fight publicly for Atticus, but the family was private ground. I would fight anyone from a third cousin upwards tooth and nail.

この "tooth and nail" は十年以上前（9/9/2010）に "fight tooth and nail" で取り上げていました。