"Champ the bit" is an idiom used to describe impatience, frustration, or eagerness. It is often associated with horses that refuse to stand still and eagerly chomp down on their bits. Synonyms for "champ the bit" include: chafe at the bit, fidget, squirm, wrestle, struggle, pull, strain, and twitch. These terms are used to indicate an animal or person's restlessness, discomfort, or eagerness to move or get going. Whether it's a horse chomping on its bit or a person eagerly anticipating a task or activity, these synonyms perfectly capture the feeling of excitement and impatience.