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English word jackhole comes from English ass hole, English jackass
ass hole (English)
jackass (English)
(rare) to behave very obnoxiously A foolish or stupid person. A male donkey. An inappropriately rude or obnoxious person (poker slang) a jack and an ace as a starting hand in Texas hold 'em due to phonetic similarity.
jackhole (English)
(slang, derogatory) An obnoxious or contemptible person.