An adjective and an expression to describe something that is very good, powerful, delicious or sexy or an exclamation denoting extreme pleasure of the highest quality.
Add suit to zoot and you have Zoot Suit or Zoot Suiter. A Mexican or other nationality who wears old 1940s style pin stripe suits, usually with baggy pants with "pegged" legs and suit jackets with wide shoulders and wide brim hats. May be a gang member or dancer who hangs with other zoot suiters.