Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective horse racing, cant of horses injected with something to make them run faster or change their temperament (19th-early 20th century)
  • adjective US Navy, slang drunk
  • adjective of an engine modified for higher performance (likely derived from the horse-racing term)
  • adjective Rhode Island, Massachusetts, Connecticut, slang excited

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Etymology is unclear, although it is a past participle form from the verb soup.

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