👉 The term "omnibusman" is a slang term that refers to a person who is considered to be a reliable and trustworthy source of information or advice. It is often used in the context of political or social matters, where the individual is known for their ability to provide accurate and reliable information. In terms of its origin, it is believed that the term "omnibusman" was coined by politicians who wanted to make sure that they were not only seen as competent but also trustworthy.