champ at the bit

The phrase "champ at the bit" or "chomping at the bit" is an idiomatic expression derived from the behavior of horses. It means to be eager or impatient for something, often when one is restrained or held back from immediate action or satisfaction. Like a horse that anxiously bites on the bit (the metal mouthpiece of a bridle) due to excitement or restlessness, the phrase implies a feeling of intense anticipation or eagerness. It is commonly used to describe someone who is ready and eager to begin or achieve something but is unable to do so due to external circumstances or limitations.