jackass

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• jack-ass

From jack +‎ ass.

jackass (countable and uncountable, plural jackasses)

1. A male donkey.

   Synonyms: he-ass, jack

   Coordinate terms: jenny, jenny-ass, she-ass

2. (chiefly US) A foolish or stupid person.

   Synonyms: fool, idiot, dink, dope, buffoon, jerk

3. (chiefly US) An inappropriately rude or obnoxious person.

   Synonyms: jerk, asshole, bastard, bitch

   • 2004 King of the Hill (TV, season 8.8)

     Bobby, only jackasses go around saying how much money they make.

4. (US, slang, uncountable) A kind of bootleg liquor.
   • Richard Mendelson, From Demon to Darling: A Legal History of Wine in America (Berkeley: University of California Press, 2009, p. 82)

     As the vintner Louis Foppiano recalled years later, Sonoma County during Prohibition became a center for bootlegging, not of wine, but of spirits. 'There were some big stills hidden up in the hills of Sonoma, some producing five hundred gallons of Jackass [spirits made from spring water and sugar] a day.'

   • Vivienne Sosnowski, When the Rivers Ran Red: An Amazing Story of Courage and Triumph in America's Wine Country (New York: Palgrave Macmillan, 2009, p. 110)

     By now the wine counties were rife with the activity of the illegal wine trade and the force of the Prohibition Unit was hustling to keep up. At the start of the year, Officer William Navas had staged a raid on the dining room at Healdsburg's Hotel Sotoyome and discovered 'jackass' brandy […]

5. (Australia, obsolete) The laughing kookaburra.

jackass (third-person singular simple present jackasses, present participle jackassing, simple past and past participle jackassed)

1. (rare, intransitive) To behave very obnoxiously.

From the phonetic similarity of "jack, ace" to "jackass".

jackass (plural jackasses)

1. (poker slang) A jack and an ace as a starting hand in Texas hold 'em.

• Rich McComas (2004 December 5) “Holdem Secrets - 400+ Pocket Cards”, in (Please provide the book title or journal name)‎^[1], retrieved 2008-08-07

•   Jackass on Wikipedia.Wikipedia
• “jackass”, in OneLook Dictionary Search.