hepcat
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hep·cat
(hĕp′kăt′)n. Slang
A performer or devotee of swing and jazz, especially during the 1940s.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
hepcat
(ˈhɛpˌkæt)n
(Jazz) obsolete slang a person who is hep, esp a player or admirer of jazz and swing in the 1940s
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
hep•cat
(ˈhɛpˌkæt)n. Older Slang.
1. a performer or admirer of jazz, esp. swing.
[1930–35, Amer.]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.