big cheese

Noun

1.

big cheese - an important influential person; "he thinks he's a big shot"; "she's a big deal in local politics"; "the Qaeda commander is a very big fish" Synonyms: big deal, big enchilada, big fish, big gun, big shot, big wheel, head honcho

big deal, big enchilada, big fish, big gun, big shot, big wheel, colloquialism, head honcho, important person, influential person, knocker, personage, supremo