The term 'Inside Dope Source' can be summarized as a TIPSTER, which is a person who provides insider information or tips about a particular subject. A TIPSTER is usually someone who has knowledge of a certain topic and is willing to share it with others. Tipsters are often used in the media to provide information on upcoming events or news stories. They can also be used in the stock market to provide advice on investments. Tipsters are often seen as reliable sources of information and can be a valuable asset to any organization.