fight tooth and nail

fight (somebody/something) tooth and nail

to use a lot of effort to oppose someone or achieve something We fought tooth and nail to keep our share of the business. They vowed to fight the new legislation tooth and nail.

fight tooth and nail

Engage in vigorous combat or make a strenuous effort, using all one's resources. For example, I'm going to fight tooth and nail for that promotion. This expression, with its allusion to biting and scratching, was first recorded in 1576.

Common Names:

Name	Pronounced	Usage
Miloslava	-	Czech, Medieval Slavic
ZacarÍAs	thah-kah-REE-ahs (Spanish), sah-kah-REE-ahs (Latin American Spanish)	Spanish
Parth	-	Indian, Gujarati, Marathi, Hindi
Edwin	['edwin]
Gautstafr	-	Ancient Scandinavian
Bettina (2)	bet-TEE-nah	Italian