The term "oldboy network" refers to a group of privileged, powerful, and influential men who use their connections and relationships to gain advantage. There are many synonyms for this term, such as "boys' club," "good old boys," or "old guard." Other similar phrases include "cronyism," "nepotism," or "favoritism." The term "establishment" also conveys a similar meaning, referring to the influential and powerful individuals who maintain the status quo. These terms are often used to describe the way in which some individuals use their connections and relationships to dominate politics, business, and other areas of life, often excluding those who do not have the same advantages.