"The Big Cheese" - English idiom

Here's a funny English idiom! It's a silly, but popular, American phrase.

If you call someone "the big cheese", it means that they are a very important person, or the boss.

"Mr Smith is the big cheese at the company. If you need anything, speak with him."

This phrase is commonly used in informal or casual English, or when joking among friends. You wouldn't want to call somebody the "big cheese" in a formal or professional situation!

"The Big Cheese" - an English idiom to describe an important person