take the bit between your teeth

The phrase "take the bit between your teeth" is an idiomatic expression derived from horse riding. It refers to a situation where someone seizes control or takes the initiative in a determined and decisive manner, often disregarding any advice or caution from others. Just as a horse that takes the bit between its teeth becomes difficult to control or steer, this phrase implies taking charge of a situation with a strong determination and a refusal to be restrained or guided.