big cheese
Americannoun
noun
Etymology
Origin of big cheese
First recorded in 1910–15; perhaps from cheese 3 ( def. ) in the sense “person or thing that is first-rate.” Big cheese is a development from the earlier American term main cheese “important or self-important person” (1899), but it was also influenced by cheese 1 ( def. ) in the sense “wheel or cylinder of the dairy food.” In the 19th century huge wheels of cheese were displayed at state and county fairs and as publicity stunts; the idiom “to cut a big cheese,” meaning “to look or act important,” dates from 1919, 20 years later than main cheese
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.