Tooth and nail
Meaning
To fight with extreme determination and ferocity, using every available means.
Origin
Imagine a primal scene, centuries ago, where survival demanded raw, brutal effort. When cornered or defending its young, an animal doesn't strategize or negotiate; it fights with every weapon it possesses. Its teeth tear, its claws (nails) rake and hold fast. This vivid, visceral image of an animal’s desperate, full-bodied struggle for survival gave birth to "tooth and nail." It's a phrase that strips away all pretense, reducing conflict to its most fundamental, fierce form, capturing the essence of an unyielding, no-holds-barred fight for what one believes in.
Examples
- The small startup fought tooth and nail against the corporate giant to protect its market share.
- She defended her children tooth and nail from any perceived threat, displaying incredible resolve.