zoot suitEnglishOxford New American Dictionaryzoot suit /ˈz(y)o͞ot ˌs(y)o͞ot, ˈz(j)ut ˌs(j)ut / ▸ 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 suit.