The idiom "big cheese" is used to refer to a person who has a lot of power, influence, or importance in a particular group or organization. It is often used to describe someone who is in a high-ranking position, such as a CEO, a manager, or a leader of a group.
For example, if someone says "John is the big cheese at the company," it means that John is the most important person in the company and has a lot of authority and influence over others.
The term "big cheese" is believed to have originated in the United States in the early 20th century and was used to describe wealthy and influential people. It is now commonly used in informal settings and is often used in a humorous or sarcastic way.
Overall, the idiom "big cheese" is used to describe someone who is highly respected and influential in a particular group or organization.
• Everyone in the industry knows that he's the big cheese when it comes to innovation.
• As the big cheese of the organization, she had to make some tough decisions.
• I heard that the big cheese of the restaurant is coming to our table.
• I don't know who the big cheese is in this company.
• He thinks he's a big cheese just because he's the boss.
• The big cheese behind the project is the CEO.