Definition & Meaning of "go toe-to-toe"

What is the origin of the idiom "go toe-to-toe" and when to use it?

The idiom "go toe-to-toe" is believed to have originated from boxing, where opponents stand toe to toe in the ring before the fight begins. In modern usage, the term "go toe-to-toe" can refer to any situation where two people or groups engage in a close competition or confrontation. It can be used to describe a physical contest, such as a boxing match or a wrestling match, or a non-physical contest, such as a debate or a negotiation.