1. a person who is knowledgeable about or enthusiastic for jazz music and its culture
Usage: slang; dated; mid-20th century
2. a person who is aware of and follows the latest trends, fashions, or ideas; someone considered cool or sophisticated
Usage: slang; dated; mid-20th century

Examples

• The hepcat knew all the best jazz clubs in the city.
• He dressed like a hepcat with his zoot suit and fedora.
• Back in the 1940s, being a hepcat meant you were really in the know.
• The hepcat crowd gathered at the nightclub to hear the latest bebop music.
• She considered herself a hepcat because she was always ahead of the fashion curve.
• The old hepcat still listened to his collection of vinyl jazz records.