zoot suit Syllabification: (zoot suit)Pronunciation: /zo͞ot/Definition of zoot suit noun a man’s suit of an exaggerated style, characterized by a long loose jacket with padded shoulders and high-waisted tapering trousers, popular in the 1940s. Origin: 1940s: rhyming formation on suitzoot suit in other Oxford dictionaries Definition of zoot suit in the British & World English dictionary