jabroniEnglishOxford New American Dictionaryjabroni /jəˈbrōnē, dʒəˈbroʊni / ▸ noun (plural jabronis) US informal a foolish or contemptible person: get it together, you jabronis. – ORIGIN early 20th century (as jiboney): probably an alteration of Italian dialect giambone, literally ‘ham’.