cut your teeth on something

The phrase "cut your teeth on something" is an idiomatic expression that means to gain initial experience or expertise in a particular area or field by actively participating in it. It often refers to the process of learning and developing skills through practical hands-on activities or challenging experiences. The phrase derives from the concept of a baby's teeth cutting through the gums while they start chewing solid food, representing the early stages of learning and growth in a specific discipline.