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A whoopee cap is a style of headwear popular among youths in the mid 20th century in the United States. It was often made from a man's felt fedora hat with the brim trimmed with a scalloped cut and turned up. In the 1920s and 1930s, such caps usually indicated the wearer was a mechanic. It is also referred to as a Jughead hat (so named after comic book character Jughead Jones, for whom the hat became an iconic piece), palookaville cap, devils cap, clubhouse hat, dink cap, rat cap, or Kingpin.
- Jughead and Friends Digest Magazine. Archie Comic Publications, Inc. February 2008.