* Be sent to Coventry: This idiom means to be ignored or ostracized by a group of people. It is thought to have originated in the 14th century, when Coventry was a major center for the production of cloth. If a weaver in Coventry produced a piece of cloth that was of poor quality, the other weavers would refuse to work with him, and he would be effectively ostracized from the community.
* Have a bone to pick with someone: This idiom means to have a grievance or complaint against someone. It is thought to have originated in the 16th century, when it was common for people to carry a bone around with them as a symbol of their grievance. If they had a dispute with someone, they would present them with the bone, and this would be a sign that they wanted to resolve the conflict.
* Be a big fish in a small pond: This idiom means to be a relatively important person in a small group or community. It is thought to have originated in the 18th century, when it was used to describe a person who was wealthy or powerful in a small town or village.
* Be a small fish in a big pond: This idiom means to be a relatively unimportant person in a large group or community. It is thought to have originated in the 19th century, when it was used to describe a person who was poor or powerless in a large city or country.