Definition: Cross·Fit ˈkrôsˌfit/ noun trademark noun: CrossFit; noun: Cross Fit a high-intensity fitness program incorporating elements from several sports and types of exercise. "I thought I was strong until I tried to do CrossFit" Everyone knows about CrossFit, your friend does it, your aunt, your brother, uncle, daughter, neighbor etc. So you've heard of it. And for some weird reason it gets a bad rap for injuries. All weightlifting can be dangerous if you don't take the t