iron hoof

The phrase "iron hoof" refers to an idiom or metaphorical expression used to describe a strong and determined nature or resilience. It is derived from the image of a horse's hoof, which is known for being hard and sturdy due to its composition of iron-like material. Thus, when someone is described as having an "iron hoof," it suggests that they possess a tenacious and unwavering character, able to withstand challenges or difficult situations with steadfastness and perseverance.